4 * function that operate on specific rr types
6 * (c) NLnet Labs, 2004-2006
7 * See the file LICENSE for the license
11 * These come strait from perldoc Net::DNS::RR::xxx
12 * first the read variant, then the write. This is
16 #include <ldns/config.h>
18 #include <ldns/ldns.h>
24 * return a specific rdf
25 * \param[in] type type of RR
26 * \param[in] rr the rr itself
27 * \param[in] pos at which position to get it
28 * \return the rdf sought
31 ldns_rr_function(ldns_rr_type type, const ldns_rr *rr, size_t pos)
33 if (!rr || ldns_rr_get_type(rr) != type) {
36 return ldns_rr_rdf(rr, pos);
41 * \param[in] type type of RR
42 * \param[in] rr the rr itself
43 * \param[in] rdf the rdf to set
44 * \param[in] pos at which position to set it
45 * \return true or false
48 ldns_rr_set_function(ldns_rr_type type, ldns_rr *rr, ldns_rdf *rdf, size_t pos)
51 if (!rr || ldns_rr_get_type(rr) != type) {
54 pop = ldns_rr_set_rdf(rr, rdf, pos);
55 ldns_rdf_deep_free(pop);
61 ldns_rr_a_address(const ldns_rr *r)
63 /* 2 types to check, cannot use the macro */
64 if (!r || (ldns_rr_get_type(r) != LDNS_RR_TYPE_A &&
65 ldns_rr_get_type(r) != LDNS_RR_TYPE_AAAA)) {
68 return ldns_rr_rdf(r, 0);
72 ldns_rr_a_set_address(ldns_rr *r, ldns_rdf *f)
74 /* 2 types to check, cannot use the macro... */
76 if (!r || (ldns_rr_get_type(r) != LDNS_RR_TYPE_A &&
77 ldns_rr_get_type(r) != LDNS_RR_TYPE_AAAA)) {
80 pop = ldns_rr_set_rdf(r, f, 0);
91 ldns_rr_ns_nsdname(const ldns_rr *r)
93 return ldns_rr_function(LDNS_RR_TYPE_NS, r, 0);
98 ldns_rr_mx_preference(const ldns_rr *r)
100 return ldns_rr_function(LDNS_RR_TYPE_MX, r, 0);
104 ldns_rr_mx_exchange(const ldns_rr *r)
106 return ldns_rr_function(LDNS_RR_TYPE_MX, r, 1);
111 ldns_rr_rrsig_typecovered(const ldns_rr *r)
113 return ldns_rr_function(LDNS_RR_TYPE_RRSIG, r, 0);
117 ldns_rr_rrsig_set_typecovered(ldns_rr *r, ldns_rdf *f)
119 return ldns_rr_set_function(LDNS_RR_TYPE_RRSIG, r, f, 0);
123 ldns_rr_rrsig_algorithm(const ldns_rr *r)
125 return ldns_rr_function(LDNS_RR_TYPE_RRSIG, r, 1);
129 ldns_rr_rrsig_set_algorithm(ldns_rr *r, ldns_rdf *f)
131 return ldns_rr_set_function(LDNS_RR_TYPE_RRSIG, r, f, 1);
135 ldns_rr_rrsig_labels(const ldns_rr *r)
137 return ldns_rr_function(LDNS_RR_TYPE_RRSIG, r, 2);
141 ldns_rr_rrsig_set_labels(ldns_rr *r, ldns_rdf *f)
143 return ldns_rr_set_function(LDNS_RR_TYPE_RRSIG, r, f, 2);
147 ldns_rr_rrsig_origttl(const ldns_rr *r)
149 return ldns_rr_function(LDNS_RR_TYPE_RRSIG, r, 3);
153 ldns_rr_rrsig_set_origttl(ldns_rr *r, ldns_rdf *f)
155 return ldns_rr_set_function(LDNS_RR_TYPE_RRSIG, r, f, 3);
159 ldns_rr_rrsig_expiration(const ldns_rr *r)
161 return ldns_rr_function(LDNS_RR_TYPE_RRSIG, r, 4);
165 ldns_rr_rrsig_set_expiration(ldns_rr *r, ldns_rdf *f)
167 return ldns_rr_set_function(LDNS_RR_TYPE_RRSIG, r, f, 4);
171 ldns_rr_rrsig_inception(const ldns_rr *r)
173 return ldns_rr_function(LDNS_RR_TYPE_RRSIG, r, 5);
177 ldns_rr_rrsig_set_inception(ldns_rr *r, ldns_rdf *f)
179 return ldns_rr_set_function(LDNS_RR_TYPE_RRSIG, r, f, 5);
183 ldns_rr_rrsig_keytag(const ldns_rr *r)
185 return ldns_rr_function(LDNS_RR_TYPE_RRSIG, r, 6);
189 ldns_rr_rrsig_set_keytag(ldns_rr *r, ldns_rdf *f)
191 return ldns_rr_set_function(LDNS_RR_TYPE_RRSIG, r, f, 6);
195 ldns_rr_rrsig_signame(const ldns_rr *r)
197 return ldns_rr_function(LDNS_RR_TYPE_RRSIG, r, 7);
201 ldns_rr_rrsig_set_signame(ldns_rr *r, ldns_rdf *f)
203 return ldns_rr_set_function(LDNS_RR_TYPE_RRSIG, r, f, 7);
207 ldns_rr_rrsig_sig(const ldns_rr *r)
209 return ldns_rr_function(LDNS_RR_TYPE_RRSIG, r, 8);
213 ldns_rr_rrsig_set_sig(ldns_rr *r, ldns_rdf *f)
215 return ldns_rr_set_function(LDNS_RR_TYPE_RRSIG, r, f, 8);
220 ldns_rr_dnskey_flags(const ldns_rr *r)
222 return ldns_rr_function(LDNS_RR_TYPE_DNSKEY, r, 0);
226 ldns_rr_dnskey_set_flags(ldns_rr *r, ldns_rdf *f)
228 return ldns_rr_set_function(LDNS_RR_TYPE_DNSKEY, r, f, 0);
232 ldns_rr_dnskey_protocol(const ldns_rr *r)
234 return ldns_rr_function(LDNS_RR_TYPE_DNSKEY, r, 1);
238 ldns_rr_dnskey_set_protocol(ldns_rr *r, ldns_rdf *f)
240 return ldns_rr_set_function(LDNS_RR_TYPE_DNSKEY, r, f, 1);
244 ldns_rr_dnskey_algorithm(const ldns_rr *r)
246 return ldns_rr_function(LDNS_RR_TYPE_DNSKEY, r, 2);
250 ldns_rr_dnskey_set_algorithm(ldns_rr *r, ldns_rdf *f)
252 return ldns_rr_set_function(LDNS_RR_TYPE_DNSKEY, r, f, 2);
256 ldns_rr_dnskey_key(const ldns_rr *r)
258 return ldns_rr_function(LDNS_RR_TYPE_DNSKEY, r, 3);
262 ldns_rr_dnskey_set_key(ldns_rr *r, ldns_rdf *f)
264 return ldns_rr_set_function(LDNS_RR_TYPE_DNSKEY, r, f, 3);
268 ldns_rr_dnskey_key_size_raw(const unsigned char* keydata,
270 const ldns_algorithm alg)
281 switch ((ldns_signing_algorithm)alg) {
284 case LDNS_SIGN_DSA_NSEC3:
293 case LDNS_SIGN_RSAMD5:
294 case LDNS_SIGN_RSASHA1:
295 case LDNS_SIGN_RSASHA1_NSEC3:
297 case LDNS_SIGN_RSASHA256:
298 case LDNS_SIGN_RSASHA512:
301 if (keydata[0] == 0) {
304 memmove(&int16, keydata + 1, 2);
306 return (len - exp - 3)*8;
312 return (len-exp-1)*8;
319 case LDNS_SIGN_ECC_GOST:
323 case LDNS_SIGN_ECDSAP256SHA256:
325 case LDNS_SIGN_ECDSAP384SHA384:
329 case LDNS_SIGN_ED25519:
333 case LDNS_SIGN_ED448:
336 case LDNS_SIGN_HMACMD5:
344 ldns_rr_dnskey_key_size(const ldns_rr *key)
346 if (!key || !ldns_rr_dnskey_key(key)
347 || !ldns_rr_dnskey_algorithm(key)) {
350 return ldns_rr_dnskey_key_size_raw((unsigned char*)ldns_rdf_data(ldns_rr_dnskey_key(key)),
351 ldns_rdf_size(ldns_rr_dnskey_key(key)),
352 ldns_rdf2native_int8(ldns_rr_dnskey_algorithm(key))
356 uint32_t ldns_soa_serial_identity(uint32_t ATTR_UNUSED(unused), void *data)
358 return (uint32_t) (intptr_t) data;
361 uint32_t ldns_soa_serial_increment(uint32_t s, void *ATTR_UNUSED(unused))
363 return ldns_soa_serial_increment_by(s, (void *)1);
366 uint32_t ldns_soa_serial_increment_by(uint32_t s, void *data)
368 return s + (intptr_t) data;
371 uint32_t ldns_soa_serial_datecounter(uint32_t s, void *data)
376 time_t t = data ? (time_t) (intptr_t) data : ldns_time(NULL);
378 (void) strftime(s_str, 11, "%Y%m%d00", localtime_r(&t, &tm));
379 new_s = (int32_t) atoi(s_str);
380 return new_s - ((int32_t) s) <= 0 ? s+1 : ((uint32_t) new_s);
383 uint32_t ldns_soa_serial_unixtime(uint32_t s, void *data)
385 int32_t new_s = data ? (int32_t) (intptr_t) data
386 : (int32_t) ldns_time(NULL);
387 return new_s - ((int32_t) s) <= 0 ? s+1 : ((uint32_t) new_s);
391 ldns_rr_soa_increment(ldns_rr *soa)
393 ldns_rr_soa_increment_func_data(soa, ldns_soa_serial_increment, NULL);
397 ldns_rr_soa_increment_func(ldns_rr *soa, ldns_soa_serial_increment_func_t f)
399 ldns_rr_soa_increment_func_data(soa, f, NULL);
403 ldns_rr_soa_increment_func_data(ldns_rr *soa,
404 ldns_soa_serial_increment_func_t f, void *data)
406 ldns_rdf *prev_soa_serial_rdf;
407 if ( !soa || !f || ldns_rr_get_type(soa) != LDNS_RR_TYPE_SOA
408 || !ldns_rr_rdf(soa, 2)) {
411 prev_soa_serial_rdf = ldns_rr_set_rdf(
413 , ldns_native2rdf_int32(
415 , (*f)( ldns_rdf2native_int32(
422 LDNS_FREE(prev_soa_serial_rdf);
426 ldns_rr_soa_increment_func_int(ldns_rr *soa,
427 ldns_soa_serial_increment_func_t f, int data)
429 ldns_rr_soa_increment_func_data(soa, f, (void *) (intptr_t) data);