/contrib/bind9/lib/dns/rdata/generic/tkey_249.c

  1/*
  2 * Copyright (C) 2004, 2007, 2009, 2012  Internet Systems Consortium, Inc. ("ISC")
  3 * Copyright (C) 1999-2003  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/*
 21 * Reviewed: Thu Mar 16 17:35:30 PST 2000 by halley.
 22 */
 23
 24/* draft-ietf-dnsext-tkey-01.txt */
 25
 26#ifndef RDATA_GENERIC_TKEY_249_C
 27#define RDATA_GENERIC_TKEY_249_C
 28
 29#define RRTYPE_TKEY_ATTRIBUTES (DNS_RDATATYPEATTR_META)
 30
 31static inline isc_result_t
 32fromtext_tkey(ARGS_FROMTEXT) {
 33	isc_token_t token;
 34	dns_rcode_t rcode;
 35	dns_name_t name;
 36	isc_buffer_t buffer;
 37	long i;
 38	char *e;
 39
 40	REQUIRE(type == 249);
 41
 42	UNUSED(type);
 43	UNUSED(rdclass);
 44	UNUSED(callbacks);
 45
 46	/*
 47	 * Algorithm.
 48	 */
 49	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
 50				      ISC_FALSE));
 51	dns_name_init(&name, NULL);
 52	buffer_fromregion(&buffer, &token.value.as_region);
 53	origin = (origin != NULL) ? origin : dns_rootname;
 54	RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
 55
 56
 57	/*
 58	 * Inception.
 59	 */
 60	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
 61				      ISC_FALSE));
 62	RETERR(uint32_tobuffer(token.value.as_ulong, target));
 63
 64	/*
 65	 * Expiration.
 66	 */
 67	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
 68				      ISC_FALSE));
 69	RETERR(uint32_tobuffer(token.value.as_ulong, target));
 70
 71	/*
 72	 * Mode.
 73	 */
 74	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
 75				      ISC_FALSE));
 76	if (token.value.as_ulong > 0xffffU)
 77		RETTOK(ISC_R_RANGE);
 78	RETERR(uint16_tobuffer(token.value.as_ulong, target));
 79
 80	/*
 81	 * Error.
 82	 */
 83	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
 84				      ISC_FALSE));
 85	if (dns_tsigrcode_fromtext(&rcode, &token.value.as_textregion)
 86				!= ISC_R_SUCCESS)
 87	{
 88		i = strtol(DNS_AS_STR(token), &e, 10);
 89		if (*e != 0)
 90			RETTOK(DNS_R_UNKNOWN);
 91		if (i < 0 || i > 0xffff)
 92			RETTOK(ISC_R_RANGE);
 93		rcode = (dns_rcode_t)i;
 94	}
 95	RETERR(uint16_tobuffer(rcode, target));
 96
 97	/*
 98	 * Key Size.
 99	 */
100	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
101				      ISC_FALSE));
102	if (token.value.as_ulong > 0xffffU)
103		RETTOK(ISC_R_RANGE);
104	RETERR(uint16_tobuffer(token.value.as_ulong, target));
105
106	/*
107	 * Key Data.
108	 */
109	RETERR(isc_base64_tobuffer(lexer, target, (int)token.value.as_ulong));
110
111	/*
112	 * Other Size.
113	 */
114	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
115				      ISC_FALSE));
116	if (token.value.as_ulong > 0xffffU)
117		RETTOK(ISC_R_RANGE);
118	RETERR(uint16_tobuffer(token.value.as_ulong, target));
119
120	/*
121	 * Other Data.
122	 */
123	return (isc_base64_tobuffer(lexer, target, (int)token.value.as_ulong));
124}
125
126static inline isc_result_t
127totext_tkey(ARGS_TOTEXT) {
128	isc_region_t sr, dr;
129	char buf[sizeof("4294967295 ")];
130	unsigned long n;
131	dns_name_t name;
132	dns_name_t prefix;
133	isc_boolean_t sub;
134
135	REQUIRE(rdata->type == 249);
136	REQUIRE(rdata->length != 0);
137
138	dns_rdata_toregion(rdata, &sr);
139
140	/*
141	 * Algorithm.
142	 */
143	dns_name_init(&name, NULL);
144	dns_name_init(&prefix, NULL);
145	dns_name_fromregion(&name, &sr);
146	sub = name_prefix(&name, tctx->origin, &prefix);
147	RETERR(dns_name_totext(&prefix, sub, target));
148	RETERR(str_totext(" ", target));
149	isc_region_consume(&sr, name_length(&name));
150
151	/*
152	 * Inception.
153	 */
154	n = uint32_fromregion(&sr);
155	isc_region_consume(&sr, 4);
156	sprintf(buf, "%lu ", n);
157	RETERR(str_totext(buf, target));
158
159	/*
160	 * Expiration.
161	 */
162	n = uint32_fromregion(&sr);
163	isc_region_consume(&sr, 4);
164	sprintf(buf, "%lu ", n);
165	RETERR(str_totext(buf, target));
166
167	/*
168	 * Mode.
169	 */
170	n = uint16_fromregion(&sr);
171	isc_region_consume(&sr, 2);
172	sprintf(buf, "%lu ", n);
173	RETERR(str_totext(buf, target));
174
175	/*
176	 * Error.
177	 */
178	n = uint16_fromregion(&sr);
179	isc_region_consume(&sr, 2);
180	if (dns_tsigrcode_totext((dns_rcode_t)n, target) == ISC_R_SUCCESS)
181		RETERR(str_totext(" ", target));
182	else {
183		sprintf(buf, "%lu ", n);
184		RETERR(str_totext(buf, target));
185	}
186
187	/*
188	 * Key Size.
189	 */
190	n = uint16_fromregion(&sr);
191	isc_region_consume(&sr, 2);
192	sprintf(buf, "%lu", n);
193	RETERR(str_totext(buf, target));
194
195	/*
196	 * Key Data.
197	 */
198	REQUIRE(n <= sr.length);
199	dr = sr;
200	dr.length = n;
201	if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
202		RETERR(str_totext(" (", target));
203	RETERR(str_totext(tctx->linebreak, target));
204	RETERR(isc_base64_totext(&dr, tctx->width - 2,
205				 tctx->linebreak, target));
206	if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
207		RETERR(str_totext(" ) ", target));
208	else
209		RETERR(str_totext(" ", target));
210	isc_region_consume(&sr, n);
211
212	/*
213	 * Other Size.
214	 */
215	n = uint16_fromregion(&sr);
216	isc_region_consume(&sr, 2);
217	sprintf(buf, "%lu", n);
218	RETERR(str_totext(buf, target));
219
220	/*
221	 * Other Data.
222	 */
223	REQUIRE(n <= sr.length);
224	if (n != 0U) {
225	    dr = sr;
226	    dr.length = n;
227	    if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
228		    RETERR(str_totext(" (", target));
229	    RETERR(str_totext(tctx->linebreak, target));
230	    RETERR(isc_base64_totext(&dr, tctx->width - 2,
231				     tctx->linebreak, target));
232	    if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
233		    RETERR(str_totext(" )", target));
234	}
235	return (ISC_R_SUCCESS);
236}
237
238static inline isc_result_t
239fromwire_tkey(ARGS_FROMWIRE) {
240	isc_region_t sr;
241	unsigned long n;
242	dns_name_t name;
243
244	REQUIRE(type == 249);
245
246	UNUSED(type);
247	UNUSED(rdclass);
248
249	dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
250
251	/*
252	 * Algorithm.
253	 */
254	dns_name_init(&name, NULL);
255	RETERR(dns_name_fromwire(&name, source, dctx, options, target));
256
257	/*
258	 * Inception: 4
259	 * Expiration: 4
260	 * Mode: 2
261	 * Error: 2
262	 */
263	isc_buffer_activeregion(source, &sr);
264	if (sr.length < 12)
265		return (ISC_R_UNEXPECTEDEND);
266	RETERR(mem_tobuffer(target, sr.base, 12));
267	isc_region_consume(&sr, 12);
268	isc_buffer_forward(source, 12);
269
270	/*
271	 * Key Length + Key Data.
272	 */
273	if (sr.length < 2)
274		return (ISC_R_UNEXPECTEDEND);
275	n = uint16_fromregion(&sr);
276	if (sr.length < n + 2)
277		return (ISC_R_UNEXPECTEDEND);
278	RETERR(mem_tobuffer(target, sr.base, n + 2));
279	isc_region_consume(&sr, n + 2);
280	isc_buffer_forward(source, n + 2);
281
282	/*
283	 * Other Length + Other Data.
284	 */
285	if (sr.length < 2)
286		return (ISC_R_UNEXPECTEDEND);
287	n = uint16_fromregion(&sr);
288	if (sr.length < n + 2)
289		return (ISC_R_UNEXPECTEDEND);
290	isc_buffer_forward(source, n + 2);
291	return (mem_tobuffer(target, sr.base, n + 2));
292}
293
294static inline isc_result_t
295towire_tkey(ARGS_TOWIRE) {
296	isc_region_t sr;
297	dns_name_t name;
298	dns_offsets_t offsets;
299
300	REQUIRE(rdata->type == 249);
301	REQUIRE(rdata->length != 0);
302
303	dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
304	/*
305	 * Algorithm.
306	 */
307	dns_rdata_toregion(rdata, &sr);
308	dns_name_init(&name, offsets);
309	dns_name_fromregion(&name, &sr);
310	RETERR(dns_name_towire(&name, cctx, target));
311	isc_region_consume(&sr, name_length(&name));
312
313	return (mem_tobuffer(target, sr.base, sr.length));
314}
315
316static inline int
317compare_tkey(ARGS_COMPARE) {
318	isc_region_t r1;
319	isc_region_t r2;
320	dns_name_t name1;
321	dns_name_t name2;
322	int order;
323
324	REQUIRE(rdata1->type == rdata2->type);
325	REQUIRE(rdata1->rdclass == rdata2->rdclass);
326	REQUIRE(rdata1->type == 249);
327	REQUIRE(rdata1->length != 0);
328	REQUIRE(rdata2->length != 0);
329
330	/*
331	 * Algorithm.
332	 */
333	dns_rdata_toregion(rdata1, &r1);
334	dns_rdata_toregion(rdata2, &r2);
335	dns_name_init(&name1, NULL);
336	dns_name_init(&name2, NULL);
337	dns_name_fromregion(&name1, &r1);
338	dns_name_fromregion(&name2, &r2);
339	if ((order = dns_name_rdatacompare(&name1, &name2)) != 0)
340		return (order);
341	isc_region_consume(&r1, name_length(&name1));
342	isc_region_consume(&r2, name_length(&name2));
343	return (isc_region_compare(&r1, &r2));
344}
345
346static inline isc_result_t
347fromstruct_tkey(ARGS_FROMSTRUCT) {
348	dns_rdata_tkey_t *tkey = source;
349
350	REQUIRE(type == 249);
351	REQUIRE(source != NULL);
352	REQUIRE(tkey->common.rdtype == type);
353	REQUIRE(tkey->common.rdclass == rdclass);
354
355	UNUSED(type);
356	UNUSED(rdclass);
357
358	/*
359	 * Algorithm Name.
360	 */
361	RETERR(name_tobuffer(&tkey->algorithm, target));
362
363	/*
364	 * Inception: 32 bits.
365	 */
366	RETERR(uint32_tobuffer(tkey->inception, target));
367
368	/*
369	 * Expire: 32 bits.
370	 */
371	RETERR(uint32_tobuffer(tkey->expire, target));
372
373	/*
374	 * Mode: 16 bits.
375	 */
376	RETERR(uint16_tobuffer(tkey->mode, target));
377
378	/*
379	 * Error: 16 bits.
380	 */
381	RETERR(uint16_tobuffer(tkey->error, target));
382
383	/*
384	 * Key size: 16 bits.
385	 */
386	RETERR(uint16_tobuffer(tkey->keylen, target));
387
388	/*
389	 * Key.
390	 */
391	RETERR(mem_tobuffer(target, tkey->key, tkey->keylen));
392
393	/*
394	 * Other size: 16 bits.
395	 */
396	RETERR(uint16_tobuffer(tkey->otherlen, target));
397
398	/*
399	 * Other data.
400	 */
401	return (mem_tobuffer(target, tkey->other, tkey->otherlen));
402}
403
404static inline isc_result_t
405tostruct_tkey(ARGS_TOSTRUCT) {
406	dns_rdata_tkey_t *tkey = target;
407	dns_name_t alg;
408	isc_region_t sr;
409
410	REQUIRE(rdata->type == 249);
411	REQUIRE(target != NULL);
412	REQUIRE(rdata->length != 0);
413
414	tkey->common.rdclass = rdata->rdclass;
415	tkey->common.rdtype = rdata->type;
416	ISC_LINK_INIT(&tkey->common, link);
417
418	dns_rdata_toregion(rdata, &sr);
419
420	/*
421	 * Algorithm Name.
422	 */
423	dns_name_init(&alg, NULL);
424	dns_name_fromregion(&alg, &sr);
425	dns_name_init(&tkey->algorithm, NULL);
426	RETERR(name_duporclone(&alg, mctx, &tkey->algorithm));
427	isc_region_consume(&sr, name_length(&tkey->algorithm));
428
429	/*
430	 * Inception.
431	 */
432	tkey->inception = uint32_fromregion(&sr);
433	isc_region_consume(&sr, 4);
434
435	/*
436	 * Expire.
437	 */
438	tkey->expire = uint32_fromregion(&sr);
439	isc_region_consume(&sr, 4);
440
441	/*
442	 * Mode.
443	 */
444	tkey->mode = uint16_fromregion(&sr);
445	isc_region_consume(&sr, 2);
446
447	/*
448	 * Error.
449	 */
450	tkey->error = uint16_fromregion(&sr);
451	isc_region_consume(&sr, 2);
452
453	/*
454	 * Key size.
455	 */
456	tkey->keylen = uint16_fromregion(&sr);
457	isc_region_consume(&sr, 2);
458
459	/*
460	 * Key.
461	 */
462	tkey->key = mem_maybedup(mctx, sr.base, tkey->keylen);
463	if (tkey->key == NULL)
464		goto cleanup;
465	isc_region_consume(&sr, tkey->keylen);
466
467	/*
468	 * Other size.
469	 */
470	tkey->otherlen = uint16_fromregion(&sr);
471	isc_region_consume(&sr, 2);
472
473	/*
474	 * Other.
475	 */
476	tkey->other = mem_maybedup(mctx, sr.base, tkey->otherlen);
477	if (tkey->other == NULL)
478		goto cleanup;
479
480	tkey->mctx = mctx;
481	return (ISC_R_SUCCESS);
482
483 cleanup:
484	if (mctx != NULL)
485		dns_name_free(&tkey->algorithm, mctx);
486	if (mctx != NULL && tkey->key != NULL)
487		isc_mem_free(mctx, tkey->key);
488	return (ISC_R_NOMEMORY);
489}
490
491static inline void
492freestruct_tkey(ARGS_FREESTRUCT) {
493	dns_rdata_tkey_t *tkey = (dns_rdata_tkey_t *) source;
494
495	REQUIRE(source != NULL);
496
497	if (tkey->mctx == NULL)
498		return;
499
500	dns_name_free(&tkey->algorithm, tkey->mctx);
501	if (tkey->key != NULL)
502		isc_mem_free(tkey->mctx, tkey->key);
503	if (tkey->other != NULL)
504		isc_mem_free(tkey->mctx, tkey->other);
505	tkey->mctx = NULL;
506}
507
508static inline isc_result_t
509additionaldata_tkey(ARGS_ADDLDATA) {
510	UNUSED(rdata);
511	UNUSED(add);
512	UNUSED(arg);
513
514	REQUIRE(rdata->type == 249);
515
516	return (ISC_R_SUCCESS);
517}
518
519static inline isc_result_t
520digest_tkey(ARGS_DIGEST) {
521	UNUSED(rdata);
522	UNUSED(digest);
523	UNUSED(arg);
524
525	REQUIRE(rdata->type == 249);
526
527	return (ISC_R_NOTIMPLEMENTED);
528}
529
530static inline isc_boolean_t
531checkowner_tkey(ARGS_CHECKOWNER) {
532
533	REQUIRE(type == 249);
534
535	UNUSED(name);
536	UNUSED(type);
537	UNUSED(rdclass);
538	UNUSED(wildcard);
539
540	return (ISC_TRUE);
541}
542
543static inline isc_boolean_t
544checknames_tkey(ARGS_CHECKNAMES) {
545
546	REQUIRE(rdata->type == 249);
547
548	UNUSED(rdata);
549	UNUSED(owner);
550	UNUSED(bad);
551
552	return (ISC_TRUE);
553}
554
555static inline isc_result_t
556casecompare_tkey(ARGS_COMPARE) {
557	return (compare_tkey(rdata1, rdata2));
558}
559#endif	/* RDATA_GENERIC_TKEY_249_C */