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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
74b2466e | 2 | |
0dae31d4 ZJS |
3 | #include <math.h> |
4 | ||
b5efdb8a | 5 | #include "alloc-util.h" |
4ad7f276 | 6 | #include "dns-domain.h" |
7263f724 | 7 | #include "dns-type.h" |
95052df3 | 8 | #include "escape.h" |
e4e73a63 | 9 | #include "hexdecoct.h" |
9bd2422a | 10 | #include "memory-util.h" |
fc8eec10 | 11 | #include "resolved-dns-dnssec.h" |
07630cea | 12 | #include "resolved-dns-packet.h" |
e4e73a63 | 13 | #include "resolved-dns-rr.h" |
8730bccf | 14 | #include "string-table.h" |
07630cea LP |
15 | #include "string-util.h" |
16 | #include "strv.h" | |
d7671a3e | 17 | #include "terminal-util.h" |
74b2466e | 18 | |
faa133f3 LP |
19 | DnsResourceKey* dns_resource_key_new(uint16_t class, uint16_t type, const char *name) { |
20 | DnsResourceKey *k; | |
21 | size_t l; | |
74b2466e | 22 | |
faa133f3 LP |
23 | assert(name); |
24 | ||
25 | l = strlen(name); | |
26 | k = malloc0(sizeof(DnsResourceKey) + l + 1); | |
27 | if (!k) | |
28 | return NULL; | |
29 | ||
30 | k->n_ref = 1; | |
31 | k->class = class; | |
32 | k->type = type; | |
33 | ||
34 | strcpy((char*) k + sizeof(DnsResourceKey), name); | |
35 | ||
36 | return k; | |
37 | } | |
38 | ||
36d9205d | 39 | DnsResourceKey* dns_resource_key_new_redirect(const DnsResourceKey *key, const DnsResourceRecord *cname) { |
58db254a LP |
40 | int r; |
41 | ||
36d9205d TG |
42 | assert(key); |
43 | assert(cname); | |
44 | ||
58db254a LP |
45 | assert(IN_SET(cname->key->type, DNS_TYPE_CNAME, DNS_TYPE_DNAME)); |
46 | ||
47 | if (cname->key->type == DNS_TYPE_CNAME) | |
48 | return dns_resource_key_new(key->class, key->type, cname->cname.name); | |
49 | else { | |
5afcf89c | 50 | _cleanup_free_ char *destination = NULL; |
58db254a | 51 | DnsResourceKey *k; |
58db254a | 52 | |
1c02e7ba | 53 | r = dns_name_change_suffix(dns_resource_key_name(key), dns_resource_key_name(cname->key), cname->dname.name, &destination); |
58db254a LP |
54 | if (r < 0) |
55 | return NULL; | |
56 | if (r == 0) | |
57 | return dns_resource_key_ref((DnsResourceKey*) key); | |
58 | ||
59 | k = dns_resource_key_new_consume(key->class, key->type, destination); | |
6b430fdb | 60 | if (!k) |
5afcf89c | 61 | return NULL; |
58db254a | 62 | |
5afcf89c | 63 | TAKE_PTR(destination); |
58db254a LP |
64 | return k; |
65 | } | |
36d9205d TG |
66 | } |
67 | ||
801ad6a6 LP |
68 | int dns_resource_key_new_append_suffix(DnsResourceKey **ret, DnsResourceKey *key, char *name) { |
69 | DnsResourceKey *new_key; | |
70 | char *joined; | |
71 | int r; | |
72 | ||
73 | assert(ret); | |
74 | assert(key); | |
75 | assert(name); | |
76 | ||
dc477e73 | 77 | if (dns_name_is_root(name)) { |
801ad6a6 LP |
78 | *ret = dns_resource_key_ref(key); |
79 | return 0; | |
80 | } | |
81 | ||
7470cc4c | 82 | r = dns_name_concat(dns_resource_key_name(key), name, 0, &joined); |
801ad6a6 LP |
83 | if (r < 0) |
84 | return r; | |
85 | ||
86 | new_key = dns_resource_key_new_consume(key->class, key->type, joined); | |
87 | if (!new_key) { | |
88 | free(joined); | |
89 | return -ENOMEM; | |
90 | } | |
91 | ||
92 | *ret = new_key; | |
93 | return 0; | |
94 | } | |
95 | ||
faa133f3 LP |
96 | DnsResourceKey* dns_resource_key_new_consume(uint16_t class, uint16_t type, char *name) { |
97 | DnsResourceKey *k; | |
98 | ||
99 | assert(name); | |
100 | ||
1ed31408 | 101 | k = new(DnsResourceKey, 1); |
faa133f3 LP |
102 | if (!k) |
103 | return NULL; | |
104 | ||
1ed31408 LP |
105 | *k = (DnsResourceKey) { |
106 | .n_ref = 1, | |
107 | .class = class, | |
108 | .type = type, | |
109 | ._name = name, | |
110 | }; | |
faa133f3 LP |
111 | |
112 | return k; | |
113 | } | |
114 | ||
115 | DnsResourceKey* dns_resource_key_ref(DnsResourceKey *k) { | |
116 | ||
117 | if (!k) | |
118 | return NULL; | |
119 | ||
1b4f6e79 LP |
120 | /* Static/const keys created with DNS_RESOURCE_KEY_CONST will |
121 | * set this to -1, they should not be reffed/unreffed */ | |
f5fbe71d | 122 | assert(k->n_ref != UINT_MAX); |
1b4f6e79 | 123 | |
faa133f3 LP |
124 | assert(k->n_ref > 0); |
125 | k->n_ref++; | |
126 | ||
127 | return k; | |
128 | } | |
129 | ||
130 | DnsResourceKey* dns_resource_key_unref(DnsResourceKey *k) { | |
131 | if (!k) | |
132 | return NULL; | |
133 | ||
f5fbe71d | 134 | assert(k->n_ref != UINT_MAX); |
faa133f3 LP |
135 | assert(k->n_ref > 0); |
136 | ||
137 | if (k->n_ref == 1) { | |
138 | free(k->_name); | |
139 | free(k); | |
140 | } else | |
141 | k->n_ref--; | |
142 | ||
143 | return NULL; | |
144 | } | |
145 | ||
1c02e7ba ZJS |
146 | const char* dns_resource_key_name(const DnsResourceKey *key) { |
147 | const char *name; | |
148 | ||
149 | if (!key) | |
150 | return NULL; | |
151 | ||
152 | if (key->_name) | |
153 | name = key->_name; | |
154 | else | |
155 | name = (char*) key + sizeof(DnsResourceKey); | |
156 | ||
157 | if (dns_name_is_root(name)) | |
158 | return "."; | |
159 | else | |
160 | return name; | |
161 | } | |
162 | ||
28b9b764 LP |
163 | bool dns_resource_key_is_address(const DnsResourceKey *key) { |
164 | assert(key); | |
165 | ||
166 | /* Check if this is an A or AAAA resource key */ | |
167 | ||
168 | return key->class == DNS_CLASS_IN && IN_SET(key->type, DNS_TYPE_A, DNS_TYPE_AAAA); | |
169 | } | |
170 | ||
a2bf8a19 DR |
171 | bool dns_resource_key_is_dnssd_ptr(const DnsResourceKey *key) { |
172 | assert(key); | |
173 | ||
174 | /* Check if this is a PTR resource key used in | |
175 | Service Instance Enumeration as described in RFC6763 p4.1. */ | |
176 | ||
177 | if (key->type != DNS_TYPE_PTR) | |
178 | return false; | |
179 | ||
180 | return dns_name_endswith(dns_resource_key_name(key), "_tcp.local") || | |
181 | dns_name_endswith(dns_resource_key_name(key), "_udp.local"); | |
182 | } | |
183 | ||
faa133f3 LP |
184 | int dns_resource_key_equal(const DnsResourceKey *a, const DnsResourceKey *b) { |
185 | int r; | |
186 | ||
4d247a6c LP |
187 | if (a == b) |
188 | return 1; | |
189 | ||
1c02e7ba | 190 | r = dns_name_equal(dns_resource_key_name(a), dns_resource_key_name(b)); |
faa133f3 LP |
191 | if (r <= 0) |
192 | return r; | |
193 | ||
194 | if (a->class != b->class) | |
195 | return 0; | |
196 | ||
197 | if (a->type != b->type) | |
198 | return 0; | |
199 | ||
200 | return 1; | |
201 | } | |
202 | ||
105e1512 | 203 | int dns_resource_key_match_rr(const DnsResourceKey *key, DnsResourceRecord *rr, const char *search_domain) { |
801ad6a6 LP |
204 | int r; |
205 | ||
faa133f3 LP |
206 | assert(key); |
207 | assert(rr); | |
208 | ||
4d247a6c LP |
209 | if (key == rr->key) |
210 | return 1; | |
211 | ||
801ad6a6 LP |
212 | /* Checks if an rr matches the specified key. If a search |
213 | * domain is specified, it will also be checked if the key | |
214 | * with the search domain suffixed might match the RR. */ | |
215 | ||
faa133f3 LP |
216 | if (rr->key->class != key->class && key->class != DNS_CLASS_ANY) |
217 | return 0; | |
218 | ||
219 | if (rr->key->type != key->type && key->type != DNS_TYPE_ANY) | |
220 | return 0; | |
221 | ||
1c02e7ba | 222 | r = dns_name_equal(dns_resource_key_name(rr->key), dns_resource_key_name(key)); |
801ad6a6 LP |
223 | if (r != 0) |
224 | return r; | |
225 | ||
226 | if (search_domain) { | |
227 | _cleanup_free_ char *joined = NULL; | |
228 | ||
7470cc4c | 229 | r = dns_name_concat(dns_resource_key_name(key), search_domain, 0, &joined); |
801ad6a6 LP |
230 | if (r < 0) |
231 | return r; | |
232 | ||
1c02e7ba | 233 | return dns_name_equal(dns_resource_key_name(rr->key), joined); |
801ad6a6 LP |
234 | } |
235 | ||
236 | return 0; | |
faa133f3 LP |
237 | } |
238 | ||
5d27351f | 239 | int dns_resource_key_match_cname_or_dname(const DnsResourceKey *key, const DnsResourceKey *cname, const char *search_domain) { |
801ad6a6 LP |
240 | int r; |
241 | ||
faa133f3 | 242 | assert(key); |
5d27351f | 243 | assert(cname); |
faa133f3 | 244 | |
5d27351f | 245 | if (cname->class != key->class && key->class != DNS_CLASS_ANY) |
faa133f3 LP |
246 | return 0; |
247 | ||
d2995826 LP |
248 | if (!dns_type_may_redirect(key->type)) |
249 | return 0; | |
250 | ||
5d27351f | 251 | if (cname->type == DNS_TYPE_CNAME) |
1c02e7ba | 252 | r = dns_name_equal(dns_resource_key_name(key), dns_resource_key_name(cname)); |
5d27351f | 253 | else if (cname->type == DNS_TYPE_DNAME) |
1c02e7ba | 254 | r = dns_name_endswith(dns_resource_key_name(key), dns_resource_key_name(cname)); |
58db254a | 255 | else |
faa133f3 | 256 | return 0; |
801ad6a6 LP |
257 | |
258 | if (r != 0) | |
259 | return r; | |
260 | ||
261 | if (search_domain) { | |
262 | _cleanup_free_ char *joined = NULL; | |
263 | ||
7470cc4c | 264 | r = dns_name_concat(dns_resource_key_name(key), search_domain, 0, &joined); |
801ad6a6 LP |
265 | if (r < 0) |
266 | return r; | |
267 | ||
5d27351f | 268 | if (cname->type == DNS_TYPE_CNAME) |
1c02e7ba | 269 | return dns_name_equal(joined, dns_resource_key_name(cname)); |
5d27351f | 270 | else if (cname->type == DNS_TYPE_DNAME) |
1c02e7ba | 271 | return dns_name_endswith(joined, dns_resource_key_name(cname)); |
801ad6a6 LP |
272 | } |
273 | ||
274 | return 0; | |
547973de LP |
275 | } |
276 | ||
277 | int dns_resource_key_match_soa(const DnsResourceKey *key, const DnsResourceKey *soa) { | |
278 | assert(soa); | |
279 | assert(key); | |
280 | ||
281 | /* Checks whether 'soa' is a SOA record for the specified key. */ | |
282 | ||
65b200e7 | 283 | if (soa->class != key->class) |
547973de | 284 | return 0; |
801ad6a6 | 285 | |
547973de LP |
286 | if (soa->type != DNS_TYPE_SOA) |
287 | return 0; | |
288 | ||
1c02e7ba | 289 | return dns_name_endswith(dns_resource_key_name(key), dns_resource_key_name(soa)); |
74b2466e LP |
290 | } |
291 | ||
7a08d314 | 292 | static void dns_resource_key_hash_func(const DnsResourceKey *k, struct siphash *state) { |
b826ab58 | 293 | assert(k); |
322345fd | 294 | |
1c02e7ba | 295 | dns_name_hash_func(dns_resource_key_name(k), state); |
b826ab58 TG |
296 | siphash24_compress(&k->class, sizeof(k->class), state); |
297 | siphash24_compress(&k->type, sizeof(k->type), state); | |
322345fd LP |
298 | } |
299 | ||
7a08d314 | 300 | static int dns_resource_key_compare_func(const DnsResourceKey *x, const DnsResourceKey *y) { |
60086492 | 301 | int r; |
322345fd | 302 | |
60086492 YW |
303 | r = dns_name_compare_func(dns_resource_key_name(x), dns_resource_key_name(y)); |
304 | if (r != 0) | |
305 | return r; | |
322345fd | 306 | |
60086492 YW |
307 | r = CMP(x->type, y->type); |
308 | if (r != 0) | |
309 | return r; | |
322345fd | 310 | |
60086492 | 311 | return CMP(x->class, y->class); |
322345fd LP |
312 | } |
313 | ||
7a08d314 | 314 | DEFINE_HASH_OPS(dns_resource_key_hash_ops, DnsResourceKey, dns_resource_key_hash_func, dns_resource_key_compare_func); |
d5099efc | 315 | |
202b76ae | 316 | char* dns_resource_key_to_string(const DnsResourceKey *key, char *buf, size_t buf_size) { |
1c02e7ba | 317 | const char *c, *t; |
202b76ae | 318 | char *ans = buf; |
2d4c5cbc | 319 | |
6af47493 LP |
320 | /* If we cannot convert the CLASS/TYPE into a known string, |
321 | use the format recommended by RFC 3597, Section 5. */ | |
322 | ||
2d4c5cbc | 323 | c = dns_class_to_string(key->class); |
2d4c5cbc | 324 | t = dns_type_to_string(key->type); |
2d4c5cbc | 325 | |
121ed16c LB |
326 | (void) snprintf(buf, buf_size, "%s %s%s%.0u %s%s%.0u", |
327 | dns_resource_key_name(key), | |
c0f86d66 JJ |
328 | strempty(c), c ? "" : "CLASS", c ? 0u : key->class, |
329 | strempty(t), t ? "" : "TYPE", t ? 0u : key->type); | |
2d4c5cbc | 330 | |
202b76ae | 331 | return ans; |
2d4c5cbc LP |
332 | } |
333 | ||
f57e3cd5 LP |
334 | bool dns_resource_key_reduce(DnsResourceKey **a, DnsResourceKey **b) { |
335 | assert(a); | |
336 | assert(b); | |
337 | ||
338 | /* Try to replace one RR key by another if they are identical, thus saving a bit of memory. Note that we do | |
339 | * this only for RR keys, not for RRs themselves, as they carry a lot of additional metadata (where they come | |
340 | * from, validity data, and suchlike), and cannot be replaced so easily by other RRs that have the same | |
341 | * superficial data. */ | |
342 | ||
343 | if (!*a) | |
344 | return false; | |
345 | if (!*b) | |
346 | return false; | |
347 | ||
348 | /* We refuse merging const keys */ | |
f5fbe71d | 349 | if ((*a)->n_ref == UINT_MAX) |
f57e3cd5 | 350 | return false; |
f5fbe71d | 351 | if ((*b)->n_ref == UINT_MAX) |
f57e3cd5 LP |
352 | return false; |
353 | ||
354 | /* Already the same? */ | |
355 | if (*a == *b) | |
356 | return true; | |
357 | ||
358 | /* Are they really identical? */ | |
359 | if (dns_resource_key_equal(*a, *b) <= 0) | |
360 | return false; | |
361 | ||
362 | /* Keep the one which already has more references. */ | |
57318441 ZJS |
363 | if ((*a)->n_ref > (*b)->n_ref) |
364 | DNS_RESOURCE_KEY_REPLACE(*b, dns_resource_key_ref(*a)); | |
365 | else | |
366 | DNS_RESOURCE_KEY_REPLACE(*a, dns_resource_key_ref(*b)); | |
f57e3cd5 LP |
367 | |
368 | return true; | |
369 | } | |
370 | ||
faa133f3 | 371 | DnsResourceRecord* dns_resource_record_new(DnsResourceKey *key) { |
74b2466e LP |
372 | DnsResourceRecord *rr; |
373 | ||
1ed31408 | 374 | rr = new(DnsResourceRecord, 1); |
74b2466e LP |
375 | if (!rr) |
376 | return NULL; | |
377 | ||
1ed31408 LP |
378 | *rr = (DnsResourceRecord) { |
379 | .n_ref = 1, | |
380 | .key = dns_resource_key_ref(key), | |
381 | .expiry = USEC_INFINITY, | |
98e80bf9 ZJS |
382 | .n_skip_labels_signer = UINT8_MAX, |
383 | .n_skip_labels_source = UINT8_MAX, | |
1ed31408 | 384 | }; |
faa133f3 | 385 | |
74b2466e LP |
386 | return rr; |
387 | } | |
388 | ||
8bf52d3d LP |
389 | DnsResourceRecord* dns_resource_record_new_full(uint16_t class, uint16_t type, const char *name) { |
390 | _cleanup_(dns_resource_key_unrefp) DnsResourceKey *key = NULL; | |
391 | ||
392 | key = dns_resource_key_new(class, type, name); | |
393 | if (!key) | |
394 | return NULL; | |
395 | ||
396 | return dns_resource_record_new(key); | |
397 | } | |
398 | ||
8301aa0b YW |
399 | static DnsResourceRecord* dns_resource_record_free(DnsResourceRecord *rr) { |
400 | assert(rr); | |
74b2466e | 401 | |
faa133f3 | 402 | if (rr->key) { |
79893116 | 403 | switch (rr->key->type) { |
9c92ce6d LP |
404 | |
405 | case DNS_TYPE_SRV: | |
406 | free(rr->srv.name); | |
407 | break; | |
408 | ||
9de3e329 ZJS |
409 | case DNS_TYPE_PTR: |
410 | case DNS_TYPE_NS: | |
411 | case DNS_TYPE_CNAME: | |
8ac4e9e1 | 412 | case DNS_TYPE_DNAME: |
faa133f3 | 413 | free(rr->ptr.name); |
9de3e329 | 414 | break; |
9c92ce6d | 415 | |
9de3e329 | 416 | case DNS_TYPE_HINFO: |
faa133f3 LP |
417 | free(rr->hinfo.cpu); |
418 | free(rr->hinfo.os); | |
9de3e329 | 419 | break; |
9c92ce6d | 420 | |
9de3e329 | 421 | case DNS_TYPE_TXT: |
9c92ce6d | 422 | case DNS_TYPE_SPF: |
2001c805 | 423 | dns_txt_item_free_all(rr->txt.items); |
9de3e329 | 424 | break; |
9c92ce6d | 425 | |
9de3e329 | 426 | case DNS_TYPE_SOA: |
7e8e0422 LP |
427 | free(rr->soa.mname); |
428 | free(rr->soa.rname); | |
9de3e329 | 429 | break; |
9c92ce6d | 430 | |
9de3e329 | 431 | case DNS_TYPE_MX: |
946c7094 | 432 | free(rr->mx.exchange); |
9de3e329 | 433 | break; |
9c92ce6d | 434 | |
abf126a3 TG |
435 | case DNS_TYPE_DS: |
436 | free(rr->ds.digest); | |
437 | break; | |
438 | ||
42cc2eeb | 439 | case DNS_TYPE_SSHFP: |
549c1a25 | 440 | free(rr->sshfp.fingerprint); |
42cc2eeb LP |
441 | break; |
442 | ||
8db0d2f5 ZJS |
443 | case DNS_TYPE_DNSKEY: |
444 | free(rr->dnskey.key); | |
445 | break; | |
446 | ||
151226ab ZJS |
447 | case DNS_TYPE_RRSIG: |
448 | free(rr->rrsig.signer); | |
449 | free(rr->rrsig.signature); | |
450 | break; | |
451 | ||
50f1e641 TG |
452 | case DNS_TYPE_NSEC: |
453 | free(rr->nsec.next_domain_name); | |
454 | bitmap_free(rr->nsec.types); | |
455 | break; | |
456 | ||
5d45a880 TG |
457 | case DNS_TYPE_NSEC3: |
458 | free(rr->nsec3.next_hashed_name); | |
459 | free(rr->nsec3.salt); | |
460 | bitmap_free(rr->nsec3.types); | |
461 | break; | |
462 | ||
0dae31d4 | 463 | case DNS_TYPE_LOC: |
9de3e329 ZJS |
464 | case DNS_TYPE_A: |
465 | case DNS_TYPE_AAAA: | |
466 | break; | |
9c92ce6d | 467 | |
48d45d2b ZJS |
468 | case DNS_TYPE_TLSA: |
469 | free(rr->tlsa.data); | |
470 | break; | |
471 | ||
95052df3 ZJS |
472 | case DNS_TYPE_CAA: |
473 | free(rr->caa.tag); | |
474 | free(rr->caa.value); | |
475 | break; | |
476 | ||
d93a16b8 | 477 | case DNS_TYPE_OPENPGPKEY: |
9de3e329 | 478 | default: |
52e085af | 479 | if (!rr->unparsable) |
bfc1d734 | 480 | free(rr->generic.data); |
9de3e329 | 481 | } |
322345fd | 482 | |
52e085af | 483 | if (rr->unparsable) |
bfc1d734 ZJS |
484 | free(rr->generic.data); |
485 | ||
a8812dd7 | 486 | free(rr->wire_format); |
faa133f3 LP |
487 | dns_resource_key_unref(rr->key); |
488 | } | |
322345fd | 489 | |
7b50eb2e | 490 | free(rr->to_string); |
6b430fdb | 491 | return mfree(rr); |
322345fd LP |
492 | } |
493 | ||
8301aa0b YW |
494 | DEFINE_TRIVIAL_REF_UNREF_FUNC(DnsResourceRecord, dns_resource_record, dns_resource_record_free); |
495 | ||
623a4c97 LP |
496 | int dns_resource_record_new_reverse(DnsResourceRecord **ret, int family, const union in_addr_union *address, const char *hostname) { |
497 | _cleanup_(dns_resource_key_unrefp) DnsResourceKey *key = NULL; | |
498 | _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL; | |
499 | _cleanup_free_ char *ptr = NULL; | |
500 | int r; | |
501 | ||
502 | assert(ret); | |
503 | assert(address); | |
504 | assert(hostname); | |
505 | ||
506 | r = dns_name_reverse(family, address, &ptr); | |
507 | if (r < 0) | |
508 | return r; | |
509 | ||
510 | key = dns_resource_key_new_consume(DNS_CLASS_IN, DNS_TYPE_PTR, ptr); | |
511 | if (!key) | |
512 | return -ENOMEM; | |
513 | ||
514 | ptr = NULL; | |
515 | ||
516 | rr = dns_resource_record_new(key); | |
517 | if (!rr) | |
518 | return -ENOMEM; | |
519 | ||
520 | rr->ptr.name = strdup(hostname); | |
521 | if (!rr->ptr.name) | |
522 | return -ENOMEM; | |
523 | ||
1cc6c93a | 524 | *ret = TAKE_PTR(rr); |
623a4c97 LP |
525 | |
526 | return 0; | |
527 | } | |
528 | ||
78c6a153 LP |
529 | int dns_resource_record_new_address(DnsResourceRecord **ret, int family, const union in_addr_union *address, const char *name) { |
530 | DnsResourceRecord *rr; | |
531 | ||
532 | assert(ret); | |
533 | assert(address); | |
534 | assert(family); | |
535 | ||
536 | if (family == AF_INET) { | |
537 | ||
538 | rr = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_A, name); | |
539 | if (!rr) | |
540 | return -ENOMEM; | |
541 | ||
542 | rr->a.in_addr = address->in; | |
543 | ||
544 | } else if (family == AF_INET6) { | |
545 | ||
546 | rr = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_AAAA, name); | |
547 | if (!rr) | |
548 | return -ENOMEM; | |
549 | ||
550 | rr->aaaa.in6_addr = address->in6; | |
551 | } else | |
552 | return -EAFNOSUPPORT; | |
553 | ||
554 | *ret = rr; | |
555 | ||
556 | return 0; | |
557 | } | |
558 | ||
a43a068a ZJS |
559 | #define FIELD_EQUAL(a, b, field) \ |
560 | ((a).field ## _size == (b).field ## _size && \ | |
9bd2422a | 561 | memcmp_safe((a).field, (b).field, (a).field ## _size) == 0) |
a43a068a | 562 | |
51969a58 | 563 | int dns_resource_record_payload_equal(const DnsResourceRecord *a, const DnsResourceRecord *b) { |
322345fd LP |
564 | int r; |
565 | ||
51969a58 | 566 | /* Check if a and b are the same, but don't look at their keys */ |
322345fd | 567 | |
52e085af | 568 | if (a->unparsable != b->unparsable) |
fd0b4602 LP |
569 | return 0; |
570 | ||
52e085af | 571 | switch (a->unparsable ? _DNS_TYPE_INVALID : a->key->type) { |
2d4c5cbc | 572 | |
9c92ce6d LP |
573 | case DNS_TYPE_SRV: |
574 | r = dns_name_equal(a->srv.name, b->srv.name); | |
575 | if (r <= 0) | |
576 | return r; | |
577 | ||
578 | return a->srv.priority == b->srv.priority && | |
579 | a->srv.weight == b->srv.weight && | |
580 | a->srv.port == b->srv.port; | |
581 | ||
2d4c5cbc LP |
582 | case DNS_TYPE_PTR: |
583 | case DNS_TYPE_NS: | |
584 | case DNS_TYPE_CNAME: | |
8ac4e9e1 | 585 | case DNS_TYPE_DNAME: |
322345fd | 586 | return dns_name_equal(a->ptr.name, b->ptr.name); |
2d4c5cbc LP |
587 | |
588 | case DNS_TYPE_HINFO: | |
589 | return strcaseeq(a->hinfo.cpu, b->hinfo.cpu) && | |
590 | strcaseeq(a->hinfo.os, b->hinfo.os); | |
591 | ||
9de3e329 | 592 | case DNS_TYPE_SPF: /* exactly the same as TXT */ |
0f84a72e | 593 | case DNS_TYPE_TXT: |
2001c805 | 594 | return dns_txt_item_equal(a->txt.items, b->txt.items); |
2e276efc | 595 | |
2d4c5cbc | 596 | case DNS_TYPE_A: |
322345fd | 597 | return memcmp(&a->a.in_addr, &b->a.in_addr, sizeof(struct in_addr)) == 0; |
2d4c5cbc LP |
598 | |
599 | case DNS_TYPE_AAAA: | |
322345fd | 600 | return memcmp(&a->aaaa.in6_addr, &b->aaaa.in6_addr, sizeof(struct in6_addr)) == 0; |
2d4c5cbc LP |
601 | |
602 | case DNS_TYPE_SOA: | |
7e8e0422 LP |
603 | r = dns_name_equal(a->soa.mname, b->soa.mname); |
604 | if (r <= 0) | |
605 | return r; | |
606 | r = dns_name_equal(a->soa.rname, b->soa.rname); | |
607 | if (r <= 0) | |
608 | return r; | |
609 | ||
610 | return a->soa.serial == b->soa.serial && | |
611 | a->soa.refresh == b->soa.refresh && | |
612 | a->soa.retry == b->soa.retry && | |
613 | a->soa.expire == b->soa.expire && | |
614 | a->soa.minimum == b->soa.minimum; | |
9c92ce6d | 615 | |
946c7094 ZJS |
616 | case DNS_TYPE_MX: |
617 | if (a->mx.priority != b->mx.priority) | |
618 | return 0; | |
619 | ||
620 | return dns_name_equal(a->mx.exchange, b->mx.exchange); | |
621 | ||
0dae31d4 ZJS |
622 | case DNS_TYPE_LOC: |
623 | assert(a->loc.version == b->loc.version); | |
624 | ||
625 | return a->loc.size == b->loc.size && | |
626 | a->loc.horiz_pre == b->loc.horiz_pre && | |
627 | a->loc.vert_pre == b->loc.vert_pre && | |
628 | a->loc.latitude == b->loc.latitude && | |
629 | a->loc.longitude == b->loc.longitude && | |
630 | a->loc.altitude == b->loc.altitude; | |
631 | ||
abf126a3 TG |
632 | case DNS_TYPE_DS: |
633 | return a->ds.key_tag == b->ds.key_tag && | |
634 | a->ds.algorithm == b->ds.algorithm && | |
635 | a->ds.digest_type == b->ds.digest_type && | |
a43a068a | 636 | FIELD_EQUAL(a->ds, b->ds, digest); |
abf126a3 | 637 | |
42cc2eeb LP |
638 | case DNS_TYPE_SSHFP: |
639 | return a->sshfp.algorithm == b->sshfp.algorithm && | |
640 | a->sshfp.fptype == b->sshfp.fptype && | |
a43a068a | 641 | FIELD_EQUAL(a->sshfp, b->sshfp, fingerprint); |
42cc2eeb | 642 | |
8db0d2f5 | 643 | case DNS_TYPE_DNSKEY: |
f91dc240 LP |
644 | return a->dnskey.flags == b->dnskey.flags && |
645 | a->dnskey.protocol == b->dnskey.protocol && | |
8db0d2f5 | 646 | a->dnskey.algorithm == b->dnskey.algorithm && |
a43a068a | 647 | FIELD_EQUAL(a->dnskey, b->dnskey, key); |
8db0d2f5 | 648 | |
151226ab ZJS |
649 | case DNS_TYPE_RRSIG: |
650 | /* do the fast comparisons first */ | |
a43a068a ZJS |
651 | return a->rrsig.type_covered == b->rrsig.type_covered && |
652 | a->rrsig.algorithm == b->rrsig.algorithm && | |
653 | a->rrsig.labels == b->rrsig.labels && | |
654 | a->rrsig.original_ttl == b->rrsig.original_ttl && | |
655 | a->rrsig.expiration == b->rrsig.expiration && | |
656 | a->rrsig.inception == b->rrsig.inception && | |
657 | a->rrsig.key_tag == b->rrsig.key_tag && | |
658 | FIELD_EQUAL(a->rrsig, b->rrsig, signature) && | |
659 | dns_name_equal(a->rrsig.signer, b->rrsig.signer); | |
151226ab | 660 | |
50f1e641 TG |
661 | case DNS_TYPE_NSEC: |
662 | return dns_name_equal(a->nsec.next_domain_name, b->nsec.next_domain_name) && | |
663 | bitmap_equal(a->nsec.types, b->nsec.types); | |
664 | ||
5d45a880 TG |
665 | case DNS_TYPE_NSEC3: |
666 | return a->nsec3.algorithm == b->nsec3.algorithm && | |
a43a068a ZJS |
667 | a->nsec3.flags == b->nsec3.flags && |
668 | a->nsec3.iterations == b->nsec3.iterations && | |
669 | FIELD_EQUAL(a->nsec3, b->nsec3, salt) && | |
670 | FIELD_EQUAL(a->nsec3, b->nsec3, next_hashed_name) && | |
671 | bitmap_equal(a->nsec3.types, b->nsec3.types); | |
5d45a880 | 672 | |
48d45d2b ZJS |
673 | case DNS_TYPE_TLSA: |
674 | return a->tlsa.cert_usage == b->tlsa.cert_usage && | |
675 | a->tlsa.selector == b->tlsa.selector && | |
676 | a->tlsa.matching_type == b->tlsa.matching_type && | |
a43a068a | 677 | FIELD_EQUAL(a->tlsa, b->tlsa, data); |
48d45d2b | 678 | |
95052df3 ZJS |
679 | case DNS_TYPE_CAA: |
680 | return a->caa.flags == b->caa.flags && | |
681 | streq(a->caa.tag, b->caa.tag) && | |
682 | FIELD_EQUAL(a->caa, b->caa, value); | |
683 | ||
684 | case DNS_TYPE_OPENPGPKEY: | |
2d4c5cbc | 685 | default: |
a43a068a | 686 | return FIELD_EQUAL(a->generic, b->generic, data); |
2d4c5cbc | 687 | } |
322345fd LP |
688 | } |
689 | ||
51969a58 ZJS |
690 | int dns_resource_record_equal(const DnsResourceRecord *a, const DnsResourceRecord *b) { |
691 | int r; | |
692 | ||
693 | assert(a); | |
694 | assert(b); | |
695 | ||
696 | if (a == b) | |
697 | return 1; | |
698 | ||
699 | r = dns_resource_key_equal(a->key, b->key); | |
700 | if (r <= 0) | |
701 | return r; | |
702 | ||
703 | return dns_resource_record_payload_equal(a, b); | |
704 | } | |
705 | ||
0dae31d4 ZJS |
706 | static char* format_location(uint32_t latitude, uint32_t longitude, uint32_t altitude, |
707 | uint8_t size, uint8_t horiz_pre, uint8_t vert_pre) { | |
708 | char *s; | |
709 | char NS = latitude >= 1U<<31 ? 'N' : 'S'; | |
710 | char EW = longitude >= 1U<<31 ? 'E' : 'W'; | |
711 | ||
712 | int lat = latitude >= 1U<<31 ? (int) (latitude - (1U<<31)) : (int) ((1U<<31) - latitude); | |
713 | int lon = longitude >= 1U<<31 ? (int) (longitude - (1U<<31)) : (int) ((1U<<31) - longitude); | |
714 | double alt = altitude >= 10000000u ? altitude - 10000000u : -(double)(10000000u - altitude); | |
715 | double siz = (size >> 4) * exp10((double) (size & 0xF)); | |
716 | double hor = (horiz_pre >> 4) * exp10((double) (horiz_pre & 0xF)); | |
717 | double ver = (vert_pre >> 4) * exp10((double) (vert_pre & 0xF)); | |
718 | ||
719 | if (asprintf(&s, "%d %d %.3f %c %d %d %.3f %c %.2fm %.2fm %.2fm %.2fm", | |
720 | (lat / 60000 / 60), | |
721 | (lat / 60000) % 60, | |
722 | (lat % 60000) / 1000., | |
723 | NS, | |
724 | (lon / 60000 / 60), | |
725 | (lon / 60000) % 60, | |
726 | (lon % 60000) / 1000., | |
727 | EW, | |
728 | alt / 100., | |
729 | siz / 100., | |
730 | hor / 100., | |
731 | ver / 100.) < 0) | |
732 | return NULL; | |
733 | ||
734 | return s; | |
735 | } | |
736 | ||
7c6423e1 TG |
737 | static int format_timestamp_dns(char *buf, size_t l, time_t sec) { |
738 | struct tm tm; | |
739 | ||
740 | assert(buf); | |
fbd0b64f | 741 | assert(l > STRLEN("YYYYMMDDHHmmSS")); |
7c6423e1 TG |
742 | |
743 | if (!gmtime_r(&sec, &tm)) | |
744 | return -EINVAL; | |
745 | ||
746 | if (strftime(buf, l, "%Y%m%d%H%M%S", &tm) <= 0) | |
747 | return -EINVAL; | |
748 | ||
749 | return 0; | |
750 | } | |
751 | ||
50f1e641 TG |
752 | static char *format_types(Bitmap *types) { |
753 | _cleanup_strv_free_ char **strv = NULL; | |
754 | _cleanup_free_ char *str = NULL; | |
755 | unsigned type; | |
756 | int r; | |
757 | ||
90e74a66 | 758 | BITMAP_FOREACH(type, types) { |
50f1e641 | 759 | if (dns_type_to_string(type)) { |
2c1fb4f7 | 760 | r = strv_extend(&strv, dns_type_to_string(type)); |
50f1e641 TG |
761 | if (r < 0) |
762 | return NULL; | |
763 | } else { | |
764 | char *t; | |
765 | ||
766 | r = asprintf(&t, "TYPE%u", type); | |
767 | if (r < 0) | |
768 | return NULL; | |
769 | ||
2c1fb4f7 | 770 | r = strv_consume(&strv, t); |
50f1e641 TG |
771 | if (r < 0) |
772 | return NULL; | |
773 | } | |
774 | } | |
775 | ||
776 | str = strv_join(strv, " "); | |
777 | if (!str) | |
778 | return NULL; | |
779 | ||
605405c6 | 780 | return strjoin("( ", str, " )"); |
50f1e641 TG |
781 | } |
782 | ||
2001c805 | 783 | static char *format_txt(DnsTxtItem *first) { |
2001c805 LP |
784 | size_t c = 1; |
785 | char *p, *s; | |
786 | ||
787 | LIST_FOREACH(items, i, first) | |
788 | c += i->length * 4 + 3; | |
789 | ||
790 | p = s = new(char, c); | |
791 | if (!s) | |
792 | return NULL; | |
793 | ||
794 | LIST_FOREACH(items, i, first) { | |
2001c805 LP |
795 | if (i != first) |
796 | *(p++) = ' '; | |
797 | ||
798 | *(p++) = '"'; | |
799 | ||
6f1d18ae | 800 | for (size_t j = 0; j < i->length; j++) { |
2001c805 LP |
801 | if (i->data[j] < ' ' || i->data[j] == '"' || i->data[j] >= 127) { |
802 | *(p++) = '\\'; | |
803 | *(p++) = '0' + (i->data[j] / 100); | |
804 | *(p++) = '0' + ((i->data[j] / 10) % 10); | |
805 | *(p++) = '0' + (i->data[j] % 10); | |
806 | } else | |
807 | *(p++) = i->data[j]; | |
808 | } | |
809 | ||
810 | *(p++) = '"'; | |
811 | } | |
812 | ||
813 | *p = 0; | |
814 | return s; | |
815 | } | |
816 | ||
7b50eb2e | 817 | const char *dns_resource_record_to_string(DnsResourceRecord *rr) { |
bc833401 DT |
818 | _cleanup_free_ char *s = NULL, *t = NULL; |
819 | char k[DNS_RESOURCE_KEY_STRING_MAX]; | |
2d4c5cbc | 820 | int r; |
322345fd | 821 | |
2d4c5cbc | 822 | assert(rr); |
322345fd | 823 | |
7b50eb2e LP |
824 | if (rr->to_string) |
825 | return rr->to_string; | |
826 | ||
202b76ae | 827 | dns_resource_key_to_string(rr->key, k, sizeof(k)); |
322345fd | 828 | |
52e085af | 829 | switch (rr->unparsable ? _DNS_TYPE_INVALID : rr->key->type) { |
322345fd | 830 | |
9c92ce6d LP |
831 | case DNS_TYPE_SRV: |
832 | r = asprintf(&s, "%s %u %u %u %s", | |
833 | k, | |
834 | rr->srv.priority, | |
835 | rr->srv.weight, | |
836 | rr->srv.port, | |
837 | strna(rr->srv.name)); | |
838 | if (r < 0) | |
7b50eb2e | 839 | return NULL; |
9c92ce6d LP |
840 | break; |
841 | ||
2d4c5cbc LP |
842 | case DNS_TYPE_PTR: |
843 | case DNS_TYPE_NS: | |
844 | case DNS_TYPE_CNAME: | |
8ac4e9e1 | 845 | case DNS_TYPE_DNAME: |
605405c6 | 846 | s = strjoin(k, " ", rr->ptr.name); |
2d4c5cbc | 847 | if (!s) |
7b50eb2e | 848 | return NULL; |
322345fd | 849 | |
2d4c5cbc | 850 | break; |
322345fd | 851 | |
2d4c5cbc | 852 | case DNS_TYPE_HINFO: |
605405c6 | 853 | s = strjoin(k, " ", rr->hinfo.cpu, " ", rr->hinfo.os); |
2d4c5cbc | 854 | if (!s) |
7b50eb2e | 855 | return NULL; |
2d4c5cbc | 856 | break; |
322345fd | 857 | |
9de3e329 | 858 | case DNS_TYPE_SPF: /* exactly the same as TXT */ |
8db0d2f5 | 859 | case DNS_TYPE_TXT: |
2001c805 | 860 | t = format_txt(rr->txt.items); |
2e276efc | 861 | if (!t) |
7b50eb2e | 862 | return NULL; |
2e276efc | 863 | |
605405c6 | 864 | s = strjoin(k, " ", t); |
2e276efc | 865 | if (!s) |
7b50eb2e | 866 | return NULL; |
2e276efc | 867 | break; |
2e276efc | 868 | |
037e5b15 DT |
869 | case DNS_TYPE_A: |
870 | r = in_addr_to_string(AF_INET, (const union in_addr_union*) &rr->a.in_addr, &t); | |
2d4c5cbc | 871 | if (r < 0) |
7b50eb2e | 872 | return NULL; |
322345fd | 873 | |
037e5b15 | 874 | s = strjoin(k, " ", t); |
2d4c5cbc | 875 | if (!s) |
7b50eb2e | 876 | return NULL; |
2d4c5cbc | 877 | break; |
322345fd | 878 | |
8db0d2f5 ZJS |
879 | case DNS_TYPE_AAAA: |
880 | r = in_addr_to_string(AF_INET6, (const union in_addr_union*) &rr->aaaa.in6_addr, &t); | |
2d4c5cbc | 881 | if (r < 0) |
7b50eb2e | 882 | return NULL; |
322345fd | 883 | |
605405c6 | 884 | s = strjoin(k, " ", t); |
2d4c5cbc | 885 | if (!s) |
7b50eb2e | 886 | return NULL; |
2d4c5cbc | 887 | break; |
322345fd | 888 | |
2d4c5cbc LP |
889 | case DNS_TYPE_SOA: |
890 | r = asprintf(&s, "%s %s %s %u %u %u %u %u", | |
891 | k, | |
892 | strna(rr->soa.mname), | |
893 | strna(rr->soa.rname), | |
894 | rr->soa.serial, | |
895 | rr->soa.refresh, | |
896 | rr->soa.retry, | |
897 | rr->soa.expire, | |
898 | rr->soa.minimum); | |
899 | if (r < 0) | |
7b50eb2e | 900 | return NULL; |
2d4c5cbc LP |
901 | break; |
902 | ||
946c7094 ZJS |
903 | case DNS_TYPE_MX: |
904 | r = asprintf(&s, "%s %u %s", | |
905 | k, | |
906 | rr->mx.priority, | |
907 | rr->mx.exchange); | |
908 | if (r < 0) | |
7b50eb2e | 909 | return NULL; |
946c7094 ZJS |
910 | break; |
911 | ||
8db0d2f5 | 912 | case DNS_TYPE_LOC: |
0dae31d4 ZJS |
913 | assert(rr->loc.version == 0); |
914 | ||
8db0d2f5 ZJS |
915 | t = format_location(rr->loc.latitude, |
916 | rr->loc.longitude, | |
917 | rr->loc.altitude, | |
918 | rr->loc.size, | |
919 | rr->loc.horiz_pre, | |
920 | rr->loc.vert_pre); | |
921 | if (!t) | |
7b50eb2e | 922 | return NULL; |
0dae31d4 | 923 | |
605405c6 | 924 | s = strjoin(k, " ", t); |
0dae31d4 | 925 | if (!s) |
7b50eb2e | 926 | return NULL; |
0dae31d4 | 927 | break; |
0dae31d4 | 928 | |
abf126a3 TG |
929 | case DNS_TYPE_DS: |
930 | t = hexmem(rr->ds.digest, rr->ds.digest_size); | |
931 | if (!t) | |
7b50eb2e | 932 | return NULL; |
abf126a3 TG |
933 | |
934 | r = asprintf(&s, "%s %u %u %u %s", | |
935 | k, | |
936 | rr->ds.key_tag, | |
937 | rr->ds.algorithm, | |
938 | rr->ds.digest_type, | |
939 | t); | |
940 | if (r < 0) | |
7b50eb2e | 941 | return NULL; |
abf126a3 TG |
942 | break; |
943 | ||
8db0d2f5 | 944 | case DNS_TYPE_SSHFP: |
549c1a25 | 945 | t = hexmem(rr->sshfp.fingerprint, rr->sshfp.fingerprint_size); |
8db0d2f5 | 946 | if (!t) |
7b50eb2e | 947 | return NULL; |
42cc2eeb LP |
948 | |
949 | r = asprintf(&s, "%s %u %u %s", | |
950 | k, | |
951 | rr->sshfp.algorithm, | |
952 | rr->sshfp.fptype, | |
8db0d2f5 | 953 | t); |
42cc2eeb | 954 | if (r < 0) |
7b50eb2e | 955 | return NULL; |
42cc2eeb | 956 | break; |
42cc2eeb | 957 | |
ff3d6560 | 958 | case DNS_TYPE_DNSKEY: { |
8e54f5d9 | 959 | _cleanup_free_ char *alg = NULL; |
fc8eec10 ZJS |
960 | uint16_t key_tag; |
961 | ||
962 | key_tag = dnssec_keytag(rr, true); | |
ff3d6560 | 963 | |
8e54f5d9 LP |
964 | r = dnssec_algorithm_to_string_alloc(rr->dnskey.algorithm, &alg); |
965 | if (r < 0) | |
966 | return NULL; | |
ff3d6560 | 967 | |
516a00e9 | 968 | r = asprintf(&t, "%s %u %u %s", |
8db0d2f5 | 969 | k, |
f91dc240 LP |
970 | rr->dnskey.flags, |
971 | rr->dnskey.protocol, | |
4bb91a95 | 972 | alg); |
8db0d2f5 | 973 | if (r < 0) |
7b50eb2e | 974 | return NULL; |
d7671a3e | 975 | |
516a00e9 | 976 | r = base64_append(&t, r, |
d7671a3e ZJS |
977 | rr->dnskey.key, rr->dnskey.key_size, |
978 | 8, columns()); | |
979 | if (r < 0) | |
980 | return NULL; | |
981 | ||
516a00e9 | 982 | r = asprintf(&s, "%s\n" |
718af59e ZJS |
983 | " -- Flags:%s%s%s\n" |
984 | " -- Key tag: %u", | |
516a00e9 | 985 | t, |
99e5ca6d ZJS |
986 | rr->dnskey.flags & DNSKEY_FLAG_SEP ? " SEP" : "", |
987 | rr->dnskey.flags & DNSKEY_FLAG_REVOKE ? " REVOKE" : "", | |
fc8eec10 | 988 | rr->dnskey.flags & DNSKEY_FLAG_ZONE_KEY ? " ZONE_KEY" : "", |
fc8eec10 | 989 | key_tag); |
99e5ca6d ZJS |
990 | if (r < 0) |
991 | return NULL; | |
99e5ca6d | 992 | |
8db0d2f5 | 993 | break; |
ff3d6560 | 994 | } |
2d4c5cbc | 995 | |
151226ab | 996 | case DNS_TYPE_RRSIG: { |
8e54f5d9 | 997 | _cleanup_free_ char *alg = NULL; |
fbd0b64f | 998 | char expiration[STRLEN("YYYYMMDDHHmmSS") + 1], inception[STRLEN("YYYYMMDDHHmmSS") + 1]; |
8e54f5d9 | 999 | const char *type; |
151226ab ZJS |
1000 | |
1001 | type = dns_type_to_string(rr->rrsig.type_covered); | |
8e54f5d9 LP |
1002 | |
1003 | r = dnssec_algorithm_to_string_alloc(rr->rrsig.algorithm, &alg); | |
1004 | if (r < 0) | |
1005 | return NULL; | |
151226ab | 1006 | |
7c6423e1 TG |
1007 | r = format_timestamp_dns(expiration, sizeof(expiration), rr->rrsig.expiration); |
1008 | if (r < 0) | |
7b50eb2e | 1009 | return NULL; |
7c6423e1 TG |
1010 | |
1011 | r = format_timestamp_dns(inception, sizeof(inception), rr->rrsig.inception); | |
1012 | if (r < 0) | |
7b50eb2e | 1013 | return NULL; |
7c6423e1 | 1014 | |
151226ab ZJS |
1015 | /* TYPE?? follows |
1016 | * http://tools.ietf.org/html/rfc3597#section-5 */ | |
1017 | ||
4bb91a95 | 1018 | r = asprintf(&s, "%s %s%.*u %s %u %u %s %s %u %s", |
151226ab ZJS |
1019 | k, |
1020 | type ?: "TYPE", | |
1021 | type ? 0 : 1, type ? 0u : (unsigned) rr->rrsig.type_covered, | |
8e54f5d9 | 1022 | alg, |
151226ab ZJS |
1023 | rr->rrsig.labels, |
1024 | rr->rrsig.original_ttl, | |
7c6423e1 TG |
1025 | expiration, |
1026 | inception, | |
151226ab | 1027 | rr->rrsig.key_tag, |
4bb91a95 | 1028 | rr->rrsig.signer); |
151226ab | 1029 | if (r < 0) |
7b50eb2e | 1030 | return NULL; |
d7671a3e | 1031 | |
4bb91a95 | 1032 | r = base64_append(&s, r, |
d7671a3e ZJS |
1033 | rr->rrsig.signature, rr->rrsig.signature_size, |
1034 | 8, columns()); | |
1035 | if (r < 0) | |
1036 | return NULL; | |
1037 | ||
151226ab ZJS |
1038 | break; |
1039 | } | |
1040 | ||
50f1e641 TG |
1041 | case DNS_TYPE_NSEC: |
1042 | t = format_types(rr->nsec.types); | |
1043 | if (!t) | |
7b50eb2e | 1044 | return NULL; |
50f1e641 TG |
1045 | |
1046 | r = asprintf(&s, "%s %s %s", | |
1047 | k, | |
1048 | rr->nsec.next_domain_name, | |
1049 | t); | |
1050 | if (r < 0) | |
7b50eb2e | 1051 | return NULL; |
50f1e641 TG |
1052 | break; |
1053 | ||
5d45a880 TG |
1054 | case DNS_TYPE_NSEC3: { |
1055 | _cleanup_free_ char *salt = NULL, *hash = NULL; | |
1056 | ||
f5430a3e | 1057 | if (rr->nsec3.salt_size > 0) { |
5d45a880 TG |
1058 | salt = hexmem(rr->nsec3.salt, rr->nsec3.salt_size); |
1059 | if (!salt) | |
7b50eb2e | 1060 | return NULL; |
5d45a880 TG |
1061 | } |
1062 | ||
1063 | hash = base32hexmem(rr->nsec3.next_hashed_name, rr->nsec3.next_hashed_name_size, false); | |
1064 | if (!hash) | |
7b50eb2e | 1065 | return NULL; |
5d45a880 TG |
1066 | |
1067 | t = format_types(rr->nsec3.types); | |
1068 | if (!t) | |
7b50eb2e | 1069 | return NULL; |
5d45a880 TG |
1070 | |
1071 | r = asprintf(&s, "%s %"PRIu8" %"PRIu8" %"PRIu16" %s %s %s", | |
1072 | k, | |
1073 | rr->nsec3.algorithm, | |
1074 | rr->nsec3.flags, | |
1075 | rr->nsec3.iterations, | |
f5430a3e | 1076 | rr->nsec3.salt_size > 0 ? salt : "-", |
5d45a880 TG |
1077 | hash, |
1078 | t); | |
1079 | if (r < 0) | |
7b50eb2e | 1080 | return NULL; |
5d45a880 TG |
1081 | |
1082 | break; | |
1083 | } | |
1084 | ||
411d095d LP |
1085 | case DNS_TYPE_TLSA: |
1086 | t = hexmem(rr->tlsa.data, rr->tlsa.data_size); | |
236d312b | 1087 | if (!t) |
48d45d2b | 1088 | return NULL; |
cfb90da3 | 1089 | |
236d312b ZJS |
1090 | r = asprintf(&s, |
1091 | "%s %u %u %u %s\n" | |
718af59e ZJS |
1092 | " -- Cert. usage: %s\n" |
1093 | " -- Selector: %s\n" | |
1094 | " -- Matching type: %s", | |
236d312b ZJS |
1095 | k, |
1096 | rr->tlsa.cert_usage, | |
1097 | rr->tlsa.selector, | |
1098 | rr->tlsa.matching_type, | |
1099 | t, | |
411d095d LP |
1100 | tlsa_cert_usage_to_string(rr->tlsa.cert_usage), |
1101 | tlsa_selector_to_string(rr->tlsa.selector), | |
1102 | tlsa_matching_type_to_string(rr->tlsa.matching_type)); | |
cfb90da3 ZJS |
1103 | if (r < 0) |
1104 | return NULL; | |
cfb90da3 | 1105 | |
48d45d2b | 1106 | break; |
48d45d2b | 1107 | |
037e5b15 DT |
1108 | case DNS_TYPE_CAA: |
1109 | t = octescape(rr->caa.value, rr->caa.value_size); | |
1110 | if (!t) | |
95052df3 ZJS |
1111 | return NULL; |
1112 | ||
718af59e | 1113 | r = asprintf(&s, "%s %u %s \"%s\"%s%s%s%.0u", |
95052df3 ZJS |
1114 | k, |
1115 | rr->caa.flags, | |
1116 | rr->caa.tag, | |
037e5b15 | 1117 | t, |
718af59e ZJS |
1118 | rr->caa.flags ? "\n -- Flags:" : "", |
1119 | rr->caa.flags & CAA_FLAG_CRITICAL ? " critical" : "", | |
1120 | rr->caa.flags & ~CAA_FLAG_CRITICAL ? " " : "", | |
1121 | rr->caa.flags & ~CAA_FLAG_CRITICAL); | |
95052df3 ZJS |
1122 | if (r < 0) |
1123 | return NULL; | |
1124 | ||
1125 | break; | |
95052df3 | 1126 | |
eba1eb90 | 1127 | case DNS_TYPE_OPENPGPKEY: |
4bb91a95 | 1128 | r = asprintf(&s, "%s", k); |
d93a16b8 ZJS |
1129 | if (r < 0) |
1130 | return NULL; | |
1131 | ||
4bb91a95 | 1132 | r = base64_append(&s, r, |
a43a068a | 1133 | rr->generic.data, rr->generic.data_size, |
d93a16b8 ZJS |
1134 | 8, columns()); |
1135 | if (r < 0) | |
1136 | return NULL; | |
1137 | break; | |
d93a16b8 | 1138 | |
8db0d2f5 | 1139 | default: |
a43a068a | 1140 | t = hexmem(rr->generic.data, rr->generic.data_size); |
8db0d2f5 | 1141 | if (!t) |
7b50eb2e | 1142 | return NULL; |
8db0d2f5 | 1143 | |
6af47493 | 1144 | /* Format as documented in RFC 3597, Section 5 */ |
a43a068a | 1145 | r = asprintf(&s, "%s \\# %zu %s", k, rr->generic.data_size, t); |
d23a27a9 | 1146 | if (r < 0) |
7b50eb2e | 1147 | return NULL; |
2d4c5cbc | 1148 | break; |
8db0d2f5 | 1149 | } |
2d4c5cbc | 1150 | |
7b50eb2e | 1151 | rr->to_string = s; |
bc833401 | 1152 | return TAKE_PTR(s); |
2d4c5cbc | 1153 | } |
322345fd | 1154 | |
2e74028a ZJS |
1155 | ssize_t dns_resource_record_payload(DnsResourceRecord *rr, void **out) { |
1156 | assert(rr); | |
1157 | assert(out); | |
1158 | ||
79893116 | 1159 | switch (rr->unparsable ? _DNS_TYPE_INVALID : rr->key->type) { |
2e74028a ZJS |
1160 | case DNS_TYPE_SRV: |
1161 | case DNS_TYPE_PTR: | |
1162 | case DNS_TYPE_NS: | |
1163 | case DNS_TYPE_CNAME: | |
1164 | case DNS_TYPE_DNAME: | |
1165 | case DNS_TYPE_HINFO: | |
1166 | case DNS_TYPE_SPF: | |
1167 | case DNS_TYPE_TXT: | |
1168 | case DNS_TYPE_A: | |
1169 | case DNS_TYPE_AAAA: | |
1170 | case DNS_TYPE_SOA: | |
1171 | case DNS_TYPE_MX: | |
1172 | case DNS_TYPE_LOC: | |
1173 | case DNS_TYPE_DS: | |
2e74028a ZJS |
1174 | case DNS_TYPE_DNSKEY: |
1175 | case DNS_TYPE_RRSIG: | |
1176 | case DNS_TYPE_NSEC: | |
1177 | case DNS_TYPE_NSEC3: | |
1178 | return -EINVAL; | |
1179 | ||
e1caa6e0 ZJS |
1180 | case DNS_TYPE_SSHFP: |
1181 | *out = rr->sshfp.fingerprint; | |
1182 | return rr->sshfp.fingerprint_size; | |
1183 | ||
2e74028a ZJS |
1184 | case DNS_TYPE_TLSA: |
1185 | *out = rr->tlsa.data; | |
1186 | return rr->tlsa.data_size; | |
1187 | ||
2e74028a ZJS |
1188 | case DNS_TYPE_OPENPGPKEY: |
1189 | default: | |
1190 | *out = rr->generic.data; | |
1191 | return rr->generic.data_size; | |
1192 | } | |
1193 | } | |
1194 | ||
a8812dd7 LP |
1195 | int dns_resource_record_to_wire_format(DnsResourceRecord *rr, bool canonical) { |
1196 | ||
1197 | DnsPacket packet = { | |
1198 | .n_ref = 1, | |
1199 | .protocol = DNS_PROTOCOL_DNS, | |
1200 | .on_stack = true, | |
1201 | .refuse_compression = true, | |
1202 | .canonical_form = canonical, | |
1203 | }; | |
1204 | ||
1205 | size_t start, rds; | |
1206 | int r; | |
1207 | ||
1208 | assert(rr); | |
1209 | ||
1210 | /* Generates the RR in wire-format, optionally in the | |
1211 | * canonical form as discussed in the DNSSEC RFC 4034, Section | |
1212 | * 6.2. We allocate a throw-away DnsPacket object on the stack | |
1213 | * here, because we need some book-keeping for memory | |
1214 | * management, and can reuse the DnsPacket serializer, that | |
1215 | * can generate the canonical form, too, but also knows label | |
1216 | * compression and suchlike. */ | |
1217 | ||
1218 | if (rr->wire_format && rr->wire_format_canonical == canonical) | |
1219 | return 0; | |
1220 | ||
58ab31d5 | 1221 | r = dns_packet_append_rr(&packet, rr, 0, &start, &rds); |
a8812dd7 LP |
1222 | if (r < 0) |
1223 | return r; | |
1224 | ||
1225 | assert(start == 0); | |
1226 | assert(packet._data); | |
1227 | ||
1228 | free(rr->wire_format); | |
1229 | rr->wire_format = packet._data; | |
1230 | rr->wire_format_size = packet.size; | |
1231 | rr->wire_format_rdata_offset = rds; | |
1232 | rr->wire_format_canonical = canonical; | |
1233 | ||
1234 | packet._data = NULL; | |
1235 | dns_packet_unref(&packet); | |
1236 | ||
1237 | return 0; | |
1238 | } | |
1239 | ||
97c67192 LP |
1240 | int dns_resource_record_signer(DnsResourceRecord *rr, const char **ret) { |
1241 | const char *n; | |
1242 | int r; | |
1243 | ||
1244 | assert(rr); | |
1245 | assert(ret); | |
1246 | ||
1247 | /* Returns the RRset's signer, if it is known. */ | |
1248 | ||
98e80bf9 | 1249 | if (rr->n_skip_labels_signer == UINT8_MAX) |
97c67192 LP |
1250 | return -ENODATA; |
1251 | ||
1c02e7ba | 1252 | n = dns_resource_key_name(rr->key); |
97c67192 LP |
1253 | r = dns_name_skip(n, rr->n_skip_labels_signer, &n); |
1254 | if (r < 0) | |
1255 | return r; | |
1256 | if (r == 0) | |
1257 | return -EINVAL; | |
1258 | ||
1259 | *ret = n; | |
1260 | return 0; | |
1261 | } | |
1262 | ||
1263 | int dns_resource_record_source(DnsResourceRecord *rr, const char **ret) { | |
1264 | const char *n; | |
1265 | int r; | |
1266 | ||
1267 | assert(rr); | |
1268 | assert(ret); | |
1269 | ||
1270 | /* Returns the RRset's synthesizing source, if it is known. */ | |
1271 | ||
98e80bf9 | 1272 | if (rr->n_skip_labels_source == UINT8_MAX) |
97c67192 LP |
1273 | return -ENODATA; |
1274 | ||
1c02e7ba | 1275 | n = dns_resource_key_name(rr->key); |
97c67192 LP |
1276 | r = dns_name_skip(n, rr->n_skip_labels_source, &n); |
1277 | if (r < 0) | |
1278 | return r; | |
1279 | if (r == 0) | |
1280 | return -EINVAL; | |
1281 | ||
1282 | *ret = n; | |
1283 | return 0; | |
1284 | } | |
1285 | ||
1286 | int dns_resource_record_is_signer(DnsResourceRecord *rr, const char *zone) { | |
1287 | const char *signer; | |
1288 | int r; | |
1289 | ||
ab481675 LP |
1290 | assert(rr); |
1291 | ||
97c67192 LP |
1292 | r = dns_resource_record_signer(rr, &signer); |
1293 | if (r < 0) | |
1294 | return r; | |
1295 | ||
1296 | return dns_name_equal(zone, signer); | |
1297 | } | |
1298 | ||
ab481675 LP |
1299 | int dns_resource_record_is_synthetic(DnsResourceRecord *rr) { |
1300 | int r; | |
1301 | ||
1302 | assert(rr); | |
1303 | ||
1304 | /* Returns > 0 if the RR is generated from a wildcard, and is not the asterisk name itself */ | |
1305 | ||
98e80bf9 | 1306 | if (rr->n_skip_labels_source == UINT8_MAX) |
ab481675 LP |
1307 | return -ENODATA; |
1308 | ||
1309 | if (rr->n_skip_labels_source == 0) | |
1310 | return 0; | |
1311 | ||
1312 | if (rr->n_skip_labels_source > 1) | |
1313 | return 1; | |
1314 | ||
1c02e7ba | 1315 | r = dns_name_startswith(dns_resource_key_name(rr->key), "*"); |
ab481675 LP |
1316 | if (r < 0) |
1317 | return r; | |
1318 | ||
1319 | return !r; | |
1320 | } | |
1321 | ||
7a08d314 | 1322 | void dns_resource_record_hash_func(const DnsResourceRecord *rr, struct siphash *state) { |
c9c72065 LP |
1323 | assert(rr); |
1324 | ||
1325 | dns_resource_key_hash_func(rr->key, state); | |
1326 | ||
52e085af | 1327 | switch (rr->unparsable ? _DNS_TYPE_INVALID : rr->key->type) { |
c9c72065 LP |
1328 | |
1329 | case DNS_TYPE_SRV: | |
1330 | siphash24_compress(&rr->srv.priority, sizeof(rr->srv.priority), state); | |
1331 | siphash24_compress(&rr->srv.weight, sizeof(rr->srv.weight), state); | |
1332 | siphash24_compress(&rr->srv.port, sizeof(rr->srv.port), state); | |
1333 | dns_name_hash_func(rr->srv.name, state); | |
1334 | break; | |
1335 | ||
1336 | case DNS_TYPE_PTR: | |
1337 | case DNS_TYPE_NS: | |
1338 | case DNS_TYPE_CNAME: | |
1339 | case DNS_TYPE_DNAME: | |
1340 | dns_name_hash_func(rr->ptr.name, state); | |
1341 | break; | |
1342 | ||
1343 | case DNS_TYPE_HINFO: | |
1344 | string_hash_func(rr->hinfo.cpu, state); | |
1345 | string_hash_func(rr->hinfo.os, state); | |
1346 | break; | |
1347 | ||
1348 | case DNS_TYPE_TXT: | |
1349 | case DNS_TYPE_SPF: { | |
c9c72065 | 1350 | LIST_FOREACH(items, j, rr->txt.items) { |
b652ccca | 1351 | siphash24_compress_safe(j->data, j->length, state); |
c9c72065 | 1352 | |
d5115566 LP |
1353 | /* Add an extra NUL byte, so that "a" followed by "b" doesn't result in the same hash as "ab" |
1354 | * followed by "". */ | |
1355 | siphash24_compress_byte(0, state); | |
c9c72065 LP |
1356 | } |
1357 | break; | |
1358 | } | |
1359 | ||
1360 | case DNS_TYPE_A: | |
1361 | siphash24_compress(&rr->a.in_addr, sizeof(rr->a.in_addr), state); | |
1362 | break; | |
1363 | ||
1364 | case DNS_TYPE_AAAA: | |
1365 | siphash24_compress(&rr->aaaa.in6_addr, sizeof(rr->aaaa.in6_addr), state); | |
1366 | break; | |
1367 | ||
1368 | case DNS_TYPE_SOA: | |
1369 | dns_name_hash_func(rr->soa.mname, state); | |
1370 | dns_name_hash_func(rr->soa.rname, state); | |
1371 | siphash24_compress(&rr->soa.serial, sizeof(rr->soa.serial), state); | |
1372 | siphash24_compress(&rr->soa.refresh, sizeof(rr->soa.refresh), state); | |
1373 | siphash24_compress(&rr->soa.retry, sizeof(rr->soa.retry), state); | |
1374 | siphash24_compress(&rr->soa.expire, sizeof(rr->soa.expire), state); | |
1375 | siphash24_compress(&rr->soa.minimum, sizeof(rr->soa.minimum), state); | |
1376 | break; | |
1377 | ||
1378 | case DNS_TYPE_MX: | |
1379 | siphash24_compress(&rr->mx.priority, sizeof(rr->mx.priority), state); | |
1380 | dns_name_hash_func(rr->mx.exchange, state); | |
1381 | break; | |
1382 | ||
1383 | case DNS_TYPE_LOC: | |
1384 | siphash24_compress(&rr->loc.version, sizeof(rr->loc.version), state); | |
1385 | siphash24_compress(&rr->loc.size, sizeof(rr->loc.size), state); | |
1386 | siphash24_compress(&rr->loc.horiz_pre, sizeof(rr->loc.horiz_pre), state); | |
1387 | siphash24_compress(&rr->loc.vert_pre, sizeof(rr->loc.vert_pre), state); | |
1388 | siphash24_compress(&rr->loc.latitude, sizeof(rr->loc.latitude), state); | |
1389 | siphash24_compress(&rr->loc.longitude, sizeof(rr->loc.longitude), state); | |
1390 | siphash24_compress(&rr->loc.altitude, sizeof(rr->loc.altitude), state); | |
1391 | break; | |
1392 | ||
1393 | case DNS_TYPE_SSHFP: | |
1394 | siphash24_compress(&rr->sshfp.algorithm, sizeof(rr->sshfp.algorithm), state); | |
1395 | siphash24_compress(&rr->sshfp.fptype, sizeof(rr->sshfp.fptype), state); | |
b652ccca | 1396 | siphash24_compress_safe(rr->sshfp.fingerprint, rr->sshfp.fingerprint_size, state); |
c9c72065 LP |
1397 | break; |
1398 | ||
1399 | case DNS_TYPE_DNSKEY: | |
1400 | siphash24_compress(&rr->dnskey.flags, sizeof(rr->dnskey.flags), state); | |
1401 | siphash24_compress(&rr->dnskey.protocol, sizeof(rr->dnskey.protocol), state); | |
1402 | siphash24_compress(&rr->dnskey.algorithm, sizeof(rr->dnskey.algorithm), state); | |
b652ccca | 1403 | siphash24_compress_safe(rr->dnskey.key, rr->dnskey.key_size, state); |
c9c72065 LP |
1404 | break; |
1405 | ||
1406 | case DNS_TYPE_RRSIG: | |
1407 | siphash24_compress(&rr->rrsig.type_covered, sizeof(rr->rrsig.type_covered), state); | |
1408 | siphash24_compress(&rr->rrsig.algorithm, sizeof(rr->rrsig.algorithm), state); | |
1409 | siphash24_compress(&rr->rrsig.labels, sizeof(rr->rrsig.labels), state); | |
1410 | siphash24_compress(&rr->rrsig.original_ttl, sizeof(rr->rrsig.original_ttl), state); | |
1411 | siphash24_compress(&rr->rrsig.expiration, sizeof(rr->rrsig.expiration), state); | |
1412 | siphash24_compress(&rr->rrsig.inception, sizeof(rr->rrsig.inception), state); | |
1413 | siphash24_compress(&rr->rrsig.key_tag, sizeof(rr->rrsig.key_tag), state); | |
1414 | dns_name_hash_func(rr->rrsig.signer, state); | |
b652ccca | 1415 | siphash24_compress_safe(rr->rrsig.signature, rr->rrsig.signature_size, state); |
c9c72065 LP |
1416 | break; |
1417 | ||
1418 | case DNS_TYPE_NSEC: | |
1419 | dns_name_hash_func(rr->nsec.next_domain_name, state); | |
1420 | /* FIXME: we leave out the type bitmap here. Hash | |
1421 | * would be better if we'd take it into account | |
1422 | * too. */ | |
1423 | break; | |
1424 | ||
1425 | case DNS_TYPE_DS: | |
1426 | siphash24_compress(&rr->ds.key_tag, sizeof(rr->ds.key_tag), state); | |
1427 | siphash24_compress(&rr->ds.algorithm, sizeof(rr->ds.algorithm), state); | |
1428 | siphash24_compress(&rr->ds.digest_type, sizeof(rr->ds.digest_type), state); | |
b652ccca | 1429 | siphash24_compress_safe(rr->ds.digest, rr->ds.digest_size, state); |
c9c72065 LP |
1430 | break; |
1431 | ||
1432 | case DNS_TYPE_NSEC3: | |
1433 | siphash24_compress(&rr->nsec3.algorithm, sizeof(rr->nsec3.algorithm), state); | |
1434 | siphash24_compress(&rr->nsec3.flags, sizeof(rr->nsec3.flags), state); | |
1435 | siphash24_compress(&rr->nsec3.iterations, sizeof(rr->nsec3.iterations), state); | |
b652ccca YW |
1436 | siphash24_compress_safe(rr->nsec3.salt, rr->nsec3.salt_size, state); |
1437 | siphash24_compress_safe(rr->nsec3.next_hashed_name, rr->nsec3.next_hashed_name_size, state); | |
c9c72065 LP |
1438 | /* FIXME: We leave the bitmaps out */ |
1439 | break; | |
48d45d2b ZJS |
1440 | |
1441 | case DNS_TYPE_TLSA: | |
1442 | siphash24_compress(&rr->tlsa.cert_usage, sizeof(rr->tlsa.cert_usage), state); | |
1443 | siphash24_compress(&rr->tlsa.selector, sizeof(rr->tlsa.selector), state); | |
1444 | siphash24_compress(&rr->tlsa.matching_type, sizeof(rr->tlsa.matching_type), state); | |
b652ccca | 1445 | siphash24_compress_safe(rr->tlsa.data, rr->tlsa.data_size, state); |
48d45d2b | 1446 | break; |
c9c72065 | 1447 | |
95052df3 ZJS |
1448 | case DNS_TYPE_CAA: |
1449 | siphash24_compress(&rr->caa.flags, sizeof(rr->caa.flags), state); | |
1450 | string_hash_func(rr->caa.tag, state); | |
b652ccca | 1451 | siphash24_compress_safe(rr->caa.value, rr->caa.value_size, state); |
48d45d2b | 1452 | break; |
c9c72065 | 1453 | |
d93a16b8 | 1454 | case DNS_TYPE_OPENPGPKEY: |
c9c72065 | 1455 | default: |
b652ccca | 1456 | siphash24_compress_safe(rr->generic.data, rr->generic.data_size, state); |
c9c72065 LP |
1457 | break; |
1458 | } | |
1459 | } | |
1460 | ||
ae45e1a3 | 1461 | int dns_resource_record_compare_func(const DnsResourceRecord *x, const DnsResourceRecord *y) { |
7a08d314 | 1462 | int r; |
c9c72065 | 1463 | |
7a08d314 YW |
1464 | r = dns_resource_key_compare_func(x->key, y->key); |
1465 | if (r != 0) | |
1466 | return r; | |
c9c72065 | 1467 | |
cd70fc37 | 1468 | if (dns_resource_record_payload_equal(x, y) > 0) |
c9c72065 LP |
1469 | return 0; |
1470 | ||
53c5797f FB |
1471 | /* We still use CMP() here, even though don't implement proper |
1472 | * ordering, since the hashtable doesn't need ordering anyway. */ | |
1473 | return CMP(x, y); | |
c9c72065 LP |
1474 | } |
1475 | ||
7a08d314 | 1476 | DEFINE_HASH_OPS(dns_resource_record_hash_ops, DnsResourceRecord, dns_resource_record_hash_func, dns_resource_record_compare_func); |
c9c72065 | 1477 | |
17c8de63 LP |
1478 | DnsResourceRecord *dns_resource_record_copy(DnsResourceRecord *rr) { |
1479 | _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *copy = NULL; | |
1480 | DnsResourceRecord *t; | |
1481 | ||
1482 | assert(rr); | |
1483 | ||
1484 | copy = dns_resource_record_new(rr->key); | |
1485 | if (!copy) | |
1486 | return NULL; | |
1487 | ||
1488 | copy->ttl = rr->ttl; | |
1489 | copy->expiry = rr->expiry; | |
1490 | copy->n_skip_labels_signer = rr->n_skip_labels_signer; | |
1491 | copy->n_skip_labels_source = rr->n_skip_labels_source; | |
52e085af | 1492 | copy->unparsable = rr->unparsable; |
17c8de63 | 1493 | |
52e085af | 1494 | switch (rr->unparsable ? _DNS_TYPE_INVALID : rr->key->type) { |
17c8de63 LP |
1495 | |
1496 | case DNS_TYPE_SRV: | |
1497 | copy->srv.priority = rr->srv.priority; | |
1498 | copy->srv.weight = rr->srv.weight; | |
1499 | copy->srv.port = rr->srv.port; | |
1500 | copy->srv.name = strdup(rr->srv.name); | |
1501 | if (!copy->srv.name) | |
1502 | return NULL; | |
1503 | break; | |
1504 | ||
1505 | case DNS_TYPE_PTR: | |
1506 | case DNS_TYPE_NS: | |
1507 | case DNS_TYPE_CNAME: | |
1508 | case DNS_TYPE_DNAME: | |
1509 | copy->ptr.name = strdup(rr->ptr.name); | |
1510 | if (!copy->ptr.name) | |
1511 | return NULL; | |
1512 | break; | |
1513 | ||
1514 | case DNS_TYPE_HINFO: | |
1515 | copy->hinfo.cpu = strdup(rr->hinfo.cpu); | |
1516 | if (!copy->hinfo.cpu) | |
1517 | return NULL; | |
1518 | ||
1519 | copy->hinfo.os = strdup(rr->hinfo.os); | |
508f63b4 | 1520 | if (!copy->hinfo.os) |
17c8de63 LP |
1521 | return NULL; |
1522 | break; | |
1523 | ||
1524 | case DNS_TYPE_TXT: | |
1525 | case DNS_TYPE_SPF: | |
1526 | copy->txt.items = dns_txt_item_copy(rr->txt.items); | |
1527 | if (!copy->txt.items) | |
1528 | return NULL; | |
1529 | break; | |
1530 | ||
1531 | case DNS_TYPE_A: | |
1532 | copy->a = rr->a; | |
1533 | break; | |
1534 | ||
1535 | case DNS_TYPE_AAAA: | |
1536 | copy->aaaa = rr->aaaa; | |
1537 | break; | |
1538 | ||
1539 | case DNS_TYPE_SOA: | |
1540 | copy->soa.mname = strdup(rr->soa.mname); | |
1541 | if (!copy->soa.mname) | |
1542 | return NULL; | |
1543 | copy->soa.rname = strdup(rr->soa.rname); | |
1544 | if (!copy->soa.rname) | |
1545 | return NULL; | |
1546 | copy->soa.serial = rr->soa.serial; | |
1547 | copy->soa.refresh = rr->soa.refresh; | |
1548 | copy->soa.retry = rr->soa.retry; | |
1549 | copy->soa.expire = rr->soa.expire; | |
1550 | copy->soa.minimum = rr->soa.minimum; | |
1551 | break; | |
1552 | ||
1553 | case DNS_TYPE_MX: | |
1554 | copy->mx.priority = rr->mx.priority; | |
1555 | copy->mx.exchange = strdup(rr->mx.exchange); | |
1556 | if (!copy->mx.exchange) | |
1557 | return NULL; | |
1558 | break; | |
1559 | ||
1560 | case DNS_TYPE_LOC: | |
1561 | copy->loc = rr->loc; | |
1562 | break; | |
1563 | ||
1564 | case DNS_TYPE_SSHFP: | |
1565 | copy->sshfp.algorithm = rr->sshfp.algorithm; | |
1566 | copy->sshfp.fptype = rr->sshfp.fptype; | |
1567 | copy->sshfp.fingerprint = memdup(rr->sshfp.fingerprint, rr->sshfp.fingerprint_size); | |
1568 | if (!copy->sshfp.fingerprint) | |
1569 | return NULL; | |
1570 | copy->sshfp.fingerprint_size = rr->sshfp.fingerprint_size; | |
1571 | break; | |
1572 | ||
1573 | case DNS_TYPE_DNSKEY: | |
1574 | copy->dnskey.flags = rr->dnskey.flags; | |
1575 | copy->dnskey.protocol = rr->dnskey.protocol; | |
1576 | copy->dnskey.algorithm = rr->dnskey.algorithm; | |
1577 | copy->dnskey.key = memdup(rr->dnskey.key, rr->dnskey.key_size); | |
1578 | if (!copy->dnskey.key) | |
1579 | return NULL; | |
1580 | copy->dnskey.key_size = rr->dnskey.key_size; | |
1581 | break; | |
1582 | ||
1583 | case DNS_TYPE_RRSIG: | |
1584 | copy->rrsig.type_covered = rr->rrsig.type_covered; | |
1585 | copy->rrsig.algorithm = rr->rrsig.algorithm; | |
1586 | copy->rrsig.labels = rr->rrsig.labels; | |
1587 | copy->rrsig.original_ttl = rr->rrsig.original_ttl; | |
1588 | copy->rrsig.expiration = rr->rrsig.expiration; | |
1589 | copy->rrsig.inception = rr->rrsig.inception; | |
1590 | copy->rrsig.key_tag = rr->rrsig.key_tag; | |
1591 | copy->rrsig.signer = strdup(rr->rrsig.signer); | |
1592 | if (!copy->rrsig.signer) | |
1593 | return NULL; | |
1594 | copy->rrsig.signature = memdup(rr->rrsig.signature, rr->rrsig.signature_size); | |
1595 | if (!copy->rrsig.signature) | |
1596 | return NULL; | |
1597 | copy->rrsig.signature_size = rr->rrsig.signature_size; | |
1598 | break; | |
1599 | ||
1600 | case DNS_TYPE_NSEC: | |
1601 | copy->nsec.next_domain_name = strdup(rr->nsec.next_domain_name); | |
1602 | if (!copy->nsec.next_domain_name) | |
1603 | return NULL; | |
1f00a50c AT |
1604 | if (rr->nsec.types) { |
1605 | copy->nsec.types = bitmap_copy(rr->nsec.types); | |
1606 | if (!copy->nsec.types) | |
1607 | return NULL; | |
1608 | } | |
17c8de63 LP |
1609 | break; |
1610 | ||
1611 | case DNS_TYPE_DS: | |
1612 | copy->ds.key_tag = rr->ds.key_tag; | |
1613 | copy->ds.algorithm = rr->ds.algorithm; | |
1614 | copy->ds.digest_type = rr->ds.digest_type; | |
1615 | copy->ds.digest = memdup(rr->ds.digest, rr->ds.digest_size); | |
1616 | if (!copy->ds.digest) | |
1617 | return NULL; | |
1618 | copy->ds.digest_size = rr->ds.digest_size; | |
1619 | break; | |
1620 | ||
1621 | case DNS_TYPE_NSEC3: | |
1622 | copy->nsec3.algorithm = rr->nsec3.algorithm; | |
1623 | copy->nsec3.flags = rr->nsec3.flags; | |
1624 | copy->nsec3.iterations = rr->nsec3.iterations; | |
1625 | copy->nsec3.salt = memdup(rr->nsec3.salt, rr->nsec3.salt_size); | |
1626 | if (!copy->nsec3.salt) | |
1627 | return NULL; | |
1628 | copy->nsec3.salt_size = rr->nsec3.salt_size; | |
1629 | copy->nsec3.next_hashed_name = memdup(rr->nsec3.next_hashed_name, rr->nsec3.next_hashed_name_size); | |
a63a1252 | 1630 | if (!copy->nsec3.next_hashed_name) |
17c8de63 LP |
1631 | return NULL; |
1632 | copy->nsec3.next_hashed_name_size = rr->nsec3.next_hashed_name_size; | |
1f00a50c AT |
1633 | if (rr->nsec3.types) { |
1634 | copy->nsec3.types = bitmap_copy(rr->nsec3.types); | |
1635 | if (!copy->nsec3.types) | |
1636 | return NULL; | |
1637 | } | |
17c8de63 LP |
1638 | break; |
1639 | ||
1640 | case DNS_TYPE_TLSA: | |
1641 | copy->tlsa.cert_usage = rr->tlsa.cert_usage; | |
1642 | copy->tlsa.selector = rr->tlsa.selector; | |
1643 | copy->tlsa.matching_type = rr->tlsa.matching_type; | |
1644 | copy->tlsa.data = memdup(rr->tlsa.data, rr->tlsa.data_size); | |
1645 | if (!copy->tlsa.data) | |
1646 | return NULL; | |
1647 | copy->tlsa.data_size = rr->tlsa.data_size; | |
1648 | break; | |
1649 | ||
1650 | case DNS_TYPE_CAA: | |
1651 | copy->caa.flags = rr->caa.flags; | |
1652 | copy->caa.tag = strdup(rr->caa.tag); | |
1653 | if (!copy->caa.tag) | |
1654 | return NULL; | |
1655 | copy->caa.value = memdup(rr->caa.value, rr->caa.value_size); | |
1656 | if (!copy->caa.value) | |
1657 | return NULL; | |
1658 | copy->caa.value_size = rr->caa.value_size; | |
1659 | break; | |
1660 | ||
1661 | case DNS_TYPE_OPT: | |
1662 | default: | |
1663 | copy->generic.data = memdup(rr->generic.data, rr->generic.data_size); | |
1664 | if (!copy->generic.data) | |
1665 | return NULL; | |
1666 | copy->generic.data_size = rr->generic.data_size; | |
1667 | break; | |
1668 | } | |
1669 | ||
1cc6c93a | 1670 | t = TAKE_PTR(copy); |
17c8de63 LP |
1671 | |
1672 | return t; | |
1673 | } | |
1674 | ||
1675 | int dns_resource_record_clamp_ttl(DnsResourceRecord **rr, uint32_t max_ttl) { | |
1676 | DnsResourceRecord *old_rr, *new_rr; | |
1677 | uint32_t new_ttl; | |
1678 | ||
1679 | assert(rr); | |
1680 | old_rr = *rr; | |
1681 | ||
1682 | if (old_rr->key->type == DNS_TYPE_OPT) | |
1683 | return -EINVAL; | |
1684 | ||
1685 | new_ttl = MIN(old_rr->ttl, max_ttl); | |
1686 | if (new_ttl == old_rr->ttl) | |
1687 | return 0; | |
1688 | ||
1689 | if (old_rr->n_ref == 1) { | |
1690 | /* Patch in place */ | |
1691 | old_rr->ttl = new_ttl; | |
1692 | return 1; | |
1693 | } | |
1694 | ||
1695 | new_rr = dns_resource_record_copy(old_rr); | |
1696 | if (!new_rr) | |
1697 | return -ENOMEM; | |
1698 | ||
1699 | new_rr->ttl = new_ttl; | |
1700 | ||
7daeec3e | 1701 | DNS_RR_REPLACE(*rr, new_rr); |
17c8de63 LP |
1702 | return 1; |
1703 | } | |
1704 | ||
48662847 | 1705 | bool dns_resource_record_is_link_local_address(DnsResourceRecord *rr) { |
d1f8fbea | 1706 | assert(rr); |
48662847 LP |
1707 | |
1708 | if (rr->key->class != DNS_CLASS_IN) | |
1709 | return false; | |
1710 | ||
1711 | if (rr->key->type == DNS_TYPE_A) | |
1712 | return in4_addr_is_link_local(&rr->a.in_addr); | |
1713 | ||
1714 | if (rr->key->type == DNS_TYPE_AAAA) | |
94876904 | 1715 | return in6_addr_is_link_local(&rr->aaaa.in6_addr); |
48662847 LP |
1716 | |
1717 | return false; | |
1718 | } | |
1719 | ||
d1f8fbea LP |
1720 | int dns_resource_record_get_cname_target(DnsResourceKey *key, DnsResourceRecord *cname, char **ret) { |
1721 | _cleanup_free_ char *d = NULL; | |
1722 | int r; | |
1723 | ||
1724 | assert(key); | |
1725 | assert(cname); | |
1726 | ||
d2995826 LP |
1727 | /* Checks if the RR `cname` is a CNAME/DNAME RR that matches the specified `key`. If so, returns the |
1728 | * target domain. If not, returns -EUNATCH */ | |
1729 | ||
d1f8fbea LP |
1730 | if (key->class != cname->key->class && key->class != DNS_CLASS_ANY) |
1731 | return -EUNATCH; | |
1732 | ||
d2995826 LP |
1733 | if (!dns_type_may_redirect(key->type)) /* This key type is not subject to CNAME/DNAME redirection? |
1734 | * Then let's refuse right-away */ | |
1735 | return -EUNATCH; | |
1736 | ||
d1f8fbea LP |
1737 | if (cname->key->type == DNS_TYPE_CNAME) { |
1738 | r = dns_name_equal(dns_resource_key_name(key), | |
1739 | dns_resource_key_name(cname->key)); | |
1740 | if (r < 0) | |
1741 | return r; | |
1742 | if (r == 0) | |
1743 | return -EUNATCH; /* CNAME RR key doesn't actually match the original key */ | |
1744 | ||
1745 | d = strdup(cname->cname.name); | |
1746 | if (!d) | |
1747 | return -ENOMEM; | |
1748 | ||
1749 | } else if (cname->key->type == DNS_TYPE_DNAME) { | |
1750 | ||
1751 | r = dns_name_change_suffix( | |
1752 | dns_resource_key_name(key), | |
1753 | dns_resource_key_name(cname->key), | |
1754 | cname->dname.name, | |
1755 | &d); | |
1756 | if (r < 0) | |
1757 | return r; | |
1758 | if (r == 0) | |
1759 | return -EUNATCH; /* DNAME RR key doesn't actually match the original key */ | |
1760 | ||
1761 | } else | |
1762 | return -EUNATCH; /* Not a CNAME/DNAME RR, hence doesn't match the proposition either */ | |
1763 | ||
1764 | *ret = TAKE_PTR(d); | |
1765 | return 0; | |
1766 | } | |
1767 | ||
2001c805 LP |
1768 | DnsTxtItem *dns_txt_item_free_all(DnsTxtItem *i) { |
1769 | DnsTxtItem *n; | |
1770 | ||
1771 | if (!i) | |
1772 | return NULL; | |
1773 | ||
1774 | n = i->items_next; | |
1775 | ||
1776 | free(i); | |
1777 | return dns_txt_item_free_all(n); | |
1778 | } | |
1779 | ||
1780 | bool dns_txt_item_equal(DnsTxtItem *a, DnsTxtItem *b) { | |
1781 | ||
4d247a6c LP |
1782 | if (a == b) |
1783 | return true; | |
1784 | ||
2001c805 LP |
1785 | if (!a != !b) |
1786 | return false; | |
1787 | ||
1788 | if (!a) | |
1789 | return true; | |
1790 | ||
1791 | if (a->length != b->length) | |
1792 | return false; | |
1793 | ||
1794 | if (memcmp(a->data, b->data, a->length) != 0) | |
1795 | return false; | |
1796 | ||
1797 | return dns_txt_item_equal(a->items_next, b->items_next); | |
1798 | } | |
8730bccf | 1799 | |
17c8de63 | 1800 | DnsTxtItem *dns_txt_item_copy(DnsTxtItem *first) { |
03677889 | 1801 | DnsTxtItem *copy = NULL, *end = NULL; |
17c8de63 LP |
1802 | |
1803 | LIST_FOREACH(items, i, first) { | |
1804 | DnsTxtItem *j; | |
1805 | ||
1806 | j = memdup(i, offsetof(DnsTxtItem, data) + i->length + 1); | |
1807 | if (!j) { | |
1808 | dns_txt_item_free_all(copy); | |
1809 | return NULL; | |
1810 | } | |
1811 | ||
1812 | LIST_INSERT_AFTER(items, copy, end, j); | |
1813 | end = j; | |
1814 | } | |
1815 | ||
1816 | return copy; | |
1817 | } | |
1818 | ||
ebb779dc DR |
1819 | int dns_txt_item_new_empty(DnsTxtItem **ret) { |
1820 | DnsTxtItem *i; | |
1821 | ||
1822 | /* RFC 6763, section 6.1 suggests to treat | |
1823 | * empty TXT RRs as equivalent to a TXT record | |
1824 | * with a single empty string. */ | |
1825 | ||
1826 | i = malloc0(offsetof(DnsTxtItem, data) + 1); /* for safety reasons we add an extra NUL byte */ | |
1827 | if (!i) | |
1828 | return -ENOMEM; | |
1829 | ||
1830 | *ret = i; | |
1831 | ||
1832 | return 0; | |
1833 | } | |
1834 | ||
ab26cdf7 LP |
1835 | int dns_resource_record_new_from_raw(DnsResourceRecord **ret, const void *data, size_t size) { |
1836 | _cleanup_(dns_packet_unrefp) DnsPacket *p = NULL; | |
1837 | int r; | |
1838 | ||
1839 | r = dns_packet_new(&p, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX); | |
1840 | if (r < 0) | |
1841 | return r; | |
1842 | ||
1843 | p->refuse_compression = true; | |
1844 | ||
1845 | r = dns_packet_append_blob(p, data, size, NULL); | |
1846 | if (r < 0) | |
1847 | return r; | |
1848 | ||
1849 | return dns_packet_read_rr(p, ret, NULL, NULL); | |
1850 | } | |
1851 | ||
1482c86a LP |
1852 | int dns_resource_key_to_json(DnsResourceKey *key, JsonVariant **ret) { |
1853 | assert(key); | |
1854 | assert(ret); | |
1855 | ||
1856 | return json_build(ret, | |
1857 | JSON_BUILD_OBJECT( | |
1858 | JSON_BUILD_PAIR("class", JSON_BUILD_INTEGER(key->class)), | |
1859 | JSON_BUILD_PAIR("type", JSON_BUILD_INTEGER(key->type)), | |
1860 | JSON_BUILD_PAIR("name", JSON_BUILD_STRING(dns_resource_key_name(key))))); | |
1861 | } | |
1862 | ||
1863 | static int type_bitmap_to_json(Bitmap *b, JsonVariant **ret) { | |
1864 | _cleanup_(json_variant_unrefp) JsonVariant *l = NULL; | |
1865 | unsigned t; | |
1866 | int r; | |
1867 | ||
1482c86a LP |
1868 | assert(ret); |
1869 | ||
1870 | BITMAP_FOREACH(t, b) { | |
1871 | _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; | |
1872 | ||
1873 | r = json_variant_new_unsigned(&v, t); | |
1874 | if (r < 0) | |
1875 | return r; | |
1876 | ||
1877 | r = json_variant_append_array(&l, v); | |
1878 | if (r < 0) | |
1879 | return r; | |
1880 | } | |
1881 | ||
1882 | if (!l) | |
1883 | return json_variant_new_array(ret, NULL, 0); | |
1884 | ||
1885 | *ret = TAKE_PTR(l); | |
1886 | return 0; | |
1887 | } | |
1888 | ||
1889 | int dns_resource_record_to_json(DnsResourceRecord *rr, JsonVariant **ret) { | |
1890 | _cleanup_(json_variant_unrefp) JsonVariant *k = NULL; | |
1891 | int r; | |
1892 | ||
1893 | assert(rr); | |
1894 | assert(ret); | |
1895 | ||
1896 | r = dns_resource_key_to_json(rr->key, &k); | |
1897 | if (r < 0) | |
1898 | return r; | |
1899 | ||
1900 | switch (rr->unparsable ? _DNS_TYPE_INVALID : rr->key->type) { | |
1901 | ||
1902 | case DNS_TYPE_SRV: | |
1903 | return json_build(ret, | |
1904 | JSON_BUILD_OBJECT( | |
1905 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
1906 | JSON_BUILD_PAIR("priority", JSON_BUILD_UNSIGNED(rr->srv.priority)), | |
1907 | JSON_BUILD_PAIR("weight", JSON_BUILD_UNSIGNED(rr->srv.weight)), | |
1908 | JSON_BUILD_PAIR("port", JSON_BUILD_UNSIGNED(rr->srv.port)), | |
1909 | JSON_BUILD_PAIR("name", JSON_BUILD_STRING(rr->srv.name)))); | |
1910 | ||
1911 | case DNS_TYPE_PTR: | |
1912 | case DNS_TYPE_NS: | |
1913 | case DNS_TYPE_CNAME: | |
1914 | case DNS_TYPE_DNAME: | |
1915 | return json_build(ret, | |
1916 | JSON_BUILD_OBJECT( | |
1917 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
1918 | JSON_BUILD_PAIR("name", JSON_BUILD_STRING(rr->ptr.name)))); | |
1919 | ||
1920 | case DNS_TYPE_HINFO: | |
1921 | return json_build(ret, | |
1922 | JSON_BUILD_OBJECT( | |
1923 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
1924 | JSON_BUILD_PAIR("cpu", JSON_BUILD_STRING(rr->hinfo.cpu)), | |
1925 | JSON_BUILD_PAIR("os", JSON_BUILD_STRING(rr->hinfo.os)))); | |
1926 | ||
1927 | case DNS_TYPE_SPF: | |
1928 | case DNS_TYPE_TXT: { | |
1929 | _cleanup_(json_variant_unrefp) JsonVariant *l = NULL; | |
1930 | ||
1931 | LIST_FOREACH(items, i, rr->txt.items) { | |
1932 | _cleanup_(json_variant_unrefp) JsonVariant *b = NULL; | |
1933 | ||
1934 | r = json_variant_new_octescape(&b, i->data, i->length); | |
1935 | if (r < 0) | |
1936 | return r; | |
1937 | ||
1938 | r = json_variant_append_array(&l, b); | |
1939 | if (r < 0) | |
1940 | return r; | |
1941 | } | |
1942 | ||
1943 | if (!l) { | |
1944 | r = json_variant_new_array(&l, NULL, 0); | |
1945 | if (r < 0) | |
1946 | return r; | |
1947 | } | |
1948 | ||
1949 | return json_build(ret, | |
1950 | JSON_BUILD_OBJECT( | |
1951 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
1952 | JSON_BUILD_PAIR("items", JSON_BUILD_VARIANT(l)))); | |
1953 | } | |
1954 | ||
1955 | case DNS_TYPE_A: | |
1956 | return json_build(ret, | |
1957 | JSON_BUILD_OBJECT( | |
1958 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
1959 | JSON_BUILD_PAIR("address", JSON_BUILD_IN4_ADDR(&rr->a.in_addr)))); | |
1960 | ||
1961 | case DNS_TYPE_AAAA: | |
1962 | return json_build(ret, | |
1963 | JSON_BUILD_OBJECT( | |
1964 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
1965 | JSON_BUILD_PAIR("address", JSON_BUILD_IN6_ADDR(&rr->aaaa.in6_addr)))); | |
1966 | ||
1967 | case DNS_TYPE_SOA: | |
1968 | return json_build(ret, | |
1969 | JSON_BUILD_OBJECT( | |
1970 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
1971 | JSON_BUILD_PAIR("mname", JSON_BUILD_STRING(rr->soa.mname)), | |
1972 | JSON_BUILD_PAIR("rname", JSON_BUILD_STRING(rr->soa.rname)), | |
1973 | JSON_BUILD_PAIR("serial", JSON_BUILD_UNSIGNED(rr->soa.serial)), | |
1974 | JSON_BUILD_PAIR("refresh", JSON_BUILD_UNSIGNED(rr->soa.refresh)), | |
1975 | JSON_BUILD_PAIR("expire", JSON_BUILD_UNSIGNED(rr->soa.retry)), | |
1976 | JSON_BUILD_PAIR("minimum", JSON_BUILD_UNSIGNED(rr->soa.minimum)))); | |
1977 | ||
1978 | case DNS_TYPE_MX: | |
1979 | return json_build(ret, | |
1980 | JSON_BUILD_OBJECT( | |
1981 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
1982 | JSON_BUILD_PAIR("priority", JSON_BUILD_UNSIGNED(rr->mx.priority)), | |
1983 | JSON_BUILD_PAIR("exchange", JSON_BUILD_STRING(rr->mx.exchange)))); | |
1984 | case DNS_TYPE_LOC: | |
1985 | return json_build(ret, | |
1986 | JSON_BUILD_OBJECT( | |
1987 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
1988 | JSON_BUILD_PAIR("version", JSON_BUILD_UNSIGNED(rr->loc.version)), | |
1989 | JSON_BUILD_PAIR("size", JSON_BUILD_UNSIGNED(rr->loc.size)), | |
1990 | JSON_BUILD_PAIR("horiz_pre", JSON_BUILD_UNSIGNED(rr->loc.horiz_pre)), | |
1991 | JSON_BUILD_PAIR("vert_pre", JSON_BUILD_UNSIGNED(rr->loc.vert_pre)), | |
1992 | JSON_BUILD_PAIR("latitude", JSON_BUILD_UNSIGNED(rr->loc.latitude)), | |
1993 | JSON_BUILD_PAIR("longitude", JSON_BUILD_UNSIGNED(rr->loc.longitude)), | |
1994 | JSON_BUILD_PAIR("altitude", JSON_BUILD_UNSIGNED(rr->loc.altitude)))); | |
1995 | ||
1996 | case DNS_TYPE_DS: | |
1997 | return json_build(ret, | |
1998 | JSON_BUILD_OBJECT( | |
1999 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
2000 | JSON_BUILD_PAIR("keyTag", JSON_BUILD_UNSIGNED(rr->ds.key_tag)), | |
2001 | JSON_BUILD_PAIR("algorithm", JSON_BUILD_UNSIGNED(rr->ds.algorithm)), | |
2002 | JSON_BUILD_PAIR("digestType", JSON_BUILD_UNSIGNED(rr->ds.digest_type)), | |
2003 | JSON_BUILD_PAIR("digest", JSON_BUILD_HEX(rr->ds.digest, rr->ds.digest_size)))); | |
2004 | ||
2005 | case DNS_TYPE_SSHFP: | |
2006 | return json_build(ret, | |
2007 | JSON_BUILD_OBJECT( | |
2008 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
2009 | JSON_BUILD_PAIR("algorithm", JSON_BUILD_UNSIGNED(rr->sshfp.algorithm)), | |
2010 | JSON_BUILD_PAIR("fptype", JSON_BUILD_UNSIGNED(rr->sshfp.fptype)), | |
2011 | JSON_BUILD_PAIR("fingerprint", JSON_BUILD_HEX(rr->sshfp.fingerprint, rr->sshfp.fingerprint_size)))); | |
2012 | ||
2013 | case DNS_TYPE_DNSKEY: | |
2014 | return json_build(ret, | |
2015 | JSON_BUILD_OBJECT( | |
2016 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
2017 | JSON_BUILD_PAIR("flags", JSON_BUILD_UNSIGNED(rr->dnskey.flags)), | |
2018 | JSON_BUILD_PAIR("protocol", JSON_BUILD_UNSIGNED(rr->dnskey.protocol)), | |
2019 | JSON_BUILD_PAIR("algorithm", JSON_BUILD_UNSIGNED(rr->dnskey.algorithm)), | |
2020 | JSON_BUILD_PAIR("dnskey", JSON_BUILD_BASE64(rr->dnskey.key, rr->dnskey.key_size)))); | |
2021 | ||
2022 | ||
2023 | case DNS_TYPE_RRSIG: | |
2024 | return json_build(ret, | |
2025 | JSON_BUILD_OBJECT( | |
2026 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
2027 | JSON_BUILD_PAIR("signer", JSON_BUILD_STRING(rr->rrsig.signer)), | |
2028 | JSON_BUILD_PAIR("typeCovered", JSON_BUILD_UNSIGNED(rr->rrsig.type_covered)), | |
2029 | JSON_BUILD_PAIR("algorithm", JSON_BUILD_UNSIGNED(rr->rrsig.algorithm)), | |
2030 | JSON_BUILD_PAIR("labels", JSON_BUILD_UNSIGNED(rr->rrsig.labels)), | |
2031 | JSON_BUILD_PAIR("originalTtl", JSON_BUILD_UNSIGNED(rr->rrsig.original_ttl)), | |
2032 | JSON_BUILD_PAIR("expiration", JSON_BUILD_UNSIGNED(rr->rrsig.expiration)), | |
2033 | JSON_BUILD_PAIR("inception", JSON_BUILD_UNSIGNED(rr->rrsig.inception)), | |
2034 | JSON_BUILD_PAIR("keyTag", JSON_BUILD_UNSIGNED(rr->rrsig.key_tag)), | |
2035 | JSON_BUILD_PAIR("signature", JSON_BUILD_BASE64(rr->rrsig.signature, rr->rrsig.signature_size)))); | |
2036 | ||
2037 | case DNS_TYPE_NSEC: { | |
2038 | _cleanup_(json_variant_unrefp) JsonVariant *bm = NULL; | |
2039 | ||
2040 | r = type_bitmap_to_json(rr->nsec.types, &bm); | |
2041 | if (r < 0) | |
2042 | return r; | |
2043 | ||
2044 | return json_build(ret, | |
2045 | JSON_BUILD_OBJECT( | |
2046 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
2047 | JSON_BUILD_PAIR("nextDomain", JSON_BUILD_STRING(rr->nsec.next_domain_name)), | |
2048 | JSON_BUILD_PAIR("types", JSON_BUILD_VARIANT(bm)))); | |
2049 | } | |
2050 | ||
2051 | case DNS_TYPE_NSEC3: { | |
2052 | _cleanup_(json_variant_unrefp) JsonVariant *bm = NULL; | |
2053 | ||
2054 | r = type_bitmap_to_json(rr->nsec3.types, &bm); | |
2055 | if (r < 0) | |
2056 | return r; | |
2057 | ||
2058 | return json_build(ret, | |
2059 | JSON_BUILD_OBJECT( | |
2060 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
2061 | JSON_BUILD_PAIR("algorithm", JSON_BUILD_UNSIGNED(rr->nsec3.algorithm)), | |
2062 | JSON_BUILD_PAIR("flags", JSON_BUILD_UNSIGNED(rr->nsec3.flags)), | |
2063 | JSON_BUILD_PAIR("iterations", JSON_BUILD_UNSIGNED(rr->nsec3.iterations)), | |
2064 | JSON_BUILD_PAIR("salt", JSON_BUILD_HEX(rr->nsec3.salt, rr->nsec3.salt_size)), | |
2065 | JSON_BUILD_PAIR("hash", JSON_BUILD_BASE32HEX(rr->nsec3.next_hashed_name, rr->nsec3.next_hashed_name_size)), | |
2066 | JSON_BUILD_PAIR("types", JSON_BUILD_VARIANT(bm)))); | |
2067 | } | |
2068 | ||
2069 | case DNS_TYPE_TLSA: | |
2070 | return json_build(ret, | |
2071 | JSON_BUILD_OBJECT( | |
2072 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
2073 | JSON_BUILD_PAIR("certUsage", JSON_BUILD_UNSIGNED(rr->tlsa.cert_usage)), | |
2074 | JSON_BUILD_PAIR("selector", JSON_BUILD_UNSIGNED(rr->tlsa.selector)), | |
2075 | JSON_BUILD_PAIR("matchingType", JSON_BUILD_UNSIGNED(rr->tlsa.matching_type)), | |
2076 | JSON_BUILD_PAIR("data", JSON_BUILD_HEX(rr->tlsa.data, rr->tlsa.data_size)))); | |
2077 | ||
2078 | case DNS_TYPE_CAA: | |
2079 | return json_build(ret, | |
2080 | JSON_BUILD_OBJECT( | |
2081 | JSON_BUILD_PAIR("key", JSON_BUILD_VARIANT(k)), | |
2082 | JSON_BUILD_PAIR("flags", JSON_BUILD_UNSIGNED(rr->caa.flags)), | |
2083 | JSON_BUILD_PAIR("tag", JSON_BUILD_STRING(rr->caa.tag)), | |
2084 | JSON_BUILD_PAIR("value", JSON_BUILD_OCTESCAPE(rr->caa.value, rr->caa.value_size)))); | |
2085 | ||
2086 | default: | |
2087 | /* Can't provide broken-down format */ | |
2088 | *ret = NULL; | |
2089 | return 0; | |
2090 | } | |
2091 | } | |
2092 | ||
8730bccf | 2093 | static const char* const dnssec_algorithm_table[_DNSSEC_ALGORITHM_MAX_DEFINED] = { |
6f717d08 | 2094 | /* Mnemonics as listed on https://www.iana.org/assignments/dns-sec-alg-numbers/dns-sec-alg-numbers.xhtml */ |
8730bccf LP |
2095 | [DNSSEC_ALGORITHM_RSAMD5] = "RSAMD5", |
2096 | [DNSSEC_ALGORITHM_DH] = "DH", | |
2097 | [DNSSEC_ALGORITHM_DSA] = "DSA", | |
2098 | [DNSSEC_ALGORITHM_ECC] = "ECC", | |
2099 | [DNSSEC_ALGORITHM_RSASHA1] = "RSASHA1", | |
2100 | [DNSSEC_ALGORITHM_DSA_NSEC3_SHA1] = "DSA-NSEC3-SHA1", | |
2101 | [DNSSEC_ALGORITHM_RSASHA1_NSEC3_SHA1] = "RSASHA1-NSEC3-SHA1", | |
2102 | [DNSSEC_ALGORITHM_RSASHA256] = "RSASHA256", | |
2103 | [DNSSEC_ALGORITHM_RSASHA512] = "RSASHA512", | |
6f717d08 LP |
2104 | [DNSSEC_ALGORITHM_ECC_GOST] = "ECC-GOST", |
2105 | [DNSSEC_ALGORITHM_ECDSAP256SHA256] = "ECDSAP256SHA256", | |
2106 | [DNSSEC_ALGORITHM_ECDSAP384SHA384] = "ECDSAP384SHA384", | |
cb9eeb06 MCO |
2107 | [DNSSEC_ALGORITHM_ED25519] = "ED25519", |
2108 | [DNSSEC_ALGORITHM_ED448] = "ED448", | |
8730bccf LP |
2109 | [DNSSEC_ALGORITHM_INDIRECT] = "INDIRECT", |
2110 | [DNSSEC_ALGORITHM_PRIVATEDNS] = "PRIVATEDNS", | |
2111 | [DNSSEC_ALGORITHM_PRIVATEOID] = "PRIVATEOID", | |
2112 | }; | |
8e54f5d9 | 2113 | DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(dnssec_algorithm, int, 255); |
8730bccf LP |
2114 | |
2115 | static const char* const dnssec_digest_table[_DNSSEC_DIGEST_MAX_DEFINED] = { | |
6f717d08 | 2116 | /* Names as listed on https://www.iana.org/assignments/ds-rr-types/ds-rr-types.xhtml */ |
e3e64a1a ZJS |
2117 | [DNSSEC_DIGEST_SHA1] = "SHA-1", |
2118 | [DNSSEC_DIGEST_SHA256] = "SHA-256", | |
6f717d08 | 2119 | [DNSSEC_DIGEST_GOST_R_34_11_94] = "GOST_R_34.11-94", |
e3e64a1a | 2120 | [DNSSEC_DIGEST_SHA384] = "SHA-384", |
8730bccf | 2121 | }; |
8e54f5d9 | 2122 | DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(dnssec_digest, int, 255); |