1 /*
2 * Copyright (C) 2013, 2015 Internet Systems Consortium, Inc. ("ISC")
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
9 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
10 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
11 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
12 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
13 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
14 * PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #ifndef RDATA_GENERIC_LP_107_C
18 #define RDATA_GENERIC_LP_107_C
19
20 #include <string.h>
21
22 #include <isc/net.h>
23
24 #define RRTYPE_LP_ATTRIBUTES (0)
25
26 static inline isc_result_t
fromtext_lp(ARGS_FROMTEXT)27 fromtext_lp(ARGS_FROMTEXT) {
28 isc_token_t token;
29 dns_name_t name;
30 isc_buffer_t buffer;
31
32 REQUIRE(type == dns_rdatatype_lp);
33
34 UNUSED(type);
35 UNUSED(rdclass);
36 UNUSED(callbacks);
37
38 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
39 ISC_FALSE));
40 if (token.value.as_ulong > 0xffffU)
41 RETTOK(ISC_R_RANGE);
42 RETERR(uint16_tobuffer(token.value.as_ulong, target));
43
44 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
45 ISC_FALSE));
46
47 dns_name_init(&name, NULL);
48 buffer_fromregion(&buffer, &token.value.as_region);
49 if (origin == NULL)
50 origin = dns_rootname;
51 return (dns_name_fromtext(&name, &buffer, origin, options, target));
52 }
53
54 static inline isc_result_t
totext_lp(ARGS_TOTEXT)55 totext_lp(ARGS_TOTEXT) {
56 isc_region_t region;
57 dns_name_t name;
58 dns_name_t prefix;
59 isc_boolean_t sub;
60 char buf[sizeof("64000")];
61 unsigned short num;
62
63 REQUIRE(rdata->type == dns_rdatatype_lp);
64 REQUIRE(rdata->length != 0);
65
66 dns_name_init(&name, NULL);
67 dns_name_init(&prefix, NULL);
68
69 dns_rdata_toregion(rdata, ®ion);
70 num = uint16_fromregion(®ion);
71 isc_region_consume(®ion, 2);
72 sprintf(buf, "%u", num);
73 RETERR(str_totext(buf, target));
74
75 RETERR(str_totext(" ", target));
76
77 dns_name_fromregion(&name, ®ion);
78 sub = name_prefix(&name, tctx->origin, &prefix);
79 return (dns_name_totext(&prefix, sub, target));
80 }
81
82 static inline isc_result_t
fromwire_lp(ARGS_FROMWIRE)83 fromwire_lp(ARGS_FROMWIRE) {
84 dns_name_t name;
85 isc_region_t sregion;
86
87 REQUIRE(type == dns_rdatatype_lp);
88
89 UNUSED(type);
90 UNUSED(rdclass);
91
92 dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
93
94 dns_name_init(&name, NULL);
95
96 isc_buffer_activeregion(source, &sregion);
97 if (sregion.length < 2)
98 return (ISC_R_UNEXPECTEDEND);
99 RETERR(mem_tobuffer(target, sregion.base, 2));
100 isc_buffer_forward(source, 2);
101 return (dns_name_fromwire(&name, source, dctx, options, target));
102 }
103
104 static inline isc_result_t
towire_lp(ARGS_TOWIRE)105 towire_lp(ARGS_TOWIRE) {
106
107 REQUIRE(rdata->type == dns_rdatatype_lp);
108 REQUIRE(rdata->length != 0);
109
110 UNUSED(cctx);
111
112 return (mem_tobuffer(target, rdata->data, rdata->length));
113 }
114
115 static inline int
compare_lp(ARGS_COMPARE)116 compare_lp(ARGS_COMPARE) {
117 isc_region_t region1;
118 isc_region_t region2;
119
120 REQUIRE(rdata1->type == rdata2->type);
121 REQUIRE(rdata1->rdclass == rdata2->rdclass);
122 REQUIRE(rdata1->type == dns_rdatatype_lp);
123 REQUIRE(rdata1->length != 0);
124 REQUIRE(rdata2->length != 0);
125
126 dns_rdata_toregion(rdata1, ®ion1);
127 dns_rdata_toregion(rdata2, ®ion2);
128
129 return (isc_region_compare(®ion1, ®ion2));
130 }
131
132 static inline isc_result_t
fromstruct_lp(ARGS_FROMSTRUCT)133 fromstruct_lp(ARGS_FROMSTRUCT) {
134 dns_rdata_lp_t *lp = source;
135 isc_region_t region;
136
137 REQUIRE(type == dns_rdatatype_lp);
138 REQUIRE(source != NULL);
139 REQUIRE(lp->common.rdtype == type);
140 REQUIRE(lp->common.rdclass == rdclass);
141
142 UNUSED(type);
143 UNUSED(rdclass);
144
145 RETERR(uint16_tobuffer(lp->pref, target));
146 dns_name_toregion(&lp->lp, ®ion);
147 return (isc_buffer_copyregion(target, ®ion));
148 }
149
150 static inline isc_result_t
tostruct_lp(ARGS_TOSTRUCT)151 tostruct_lp(ARGS_TOSTRUCT) {
152 isc_region_t region;
153 dns_rdata_lp_t *lp = target;
154 dns_name_t name;
155
156 REQUIRE(rdata->type == dns_rdatatype_lp);
157 REQUIRE(target != NULL);
158 REQUIRE(rdata->length != 0);
159
160 lp->common.rdclass = rdata->rdclass;
161 lp->common.rdtype = rdata->type;
162 ISC_LINK_INIT(&lp->common, link);
163
164 dns_name_init(&name, NULL);
165 dns_rdata_toregion(rdata, ®ion);
166 lp->pref = uint16_fromregion(®ion);
167 isc_region_consume(®ion, 2);
168 dns_name_fromregion(&name, ®ion);
169 dns_name_init(&lp->lp, NULL);
170 RETERR(name_duporclone(&name, mctx, &lp->lp));
171 lp->mctx = mctx;
172 return (ISC_R_SUCCESS);
173 }
174
175 static inline void
freestruct_lp(ARGS_FREESTRUCT)176 freestruct_lp(ARGS_FREESTRUCT) {
177 dns_rdata_lp_t *lp = source;
178
179 REQUIRE(source != NULL);
180 REQUIRE(lp->common.rdtype == dns_rdatatype_lp);
181
182 if (lp->mctx == NULL)
183 return;
184
185 dns_name_free(&lp->lp, lp->mctx);
186 lp->mctx = NULL;
187 }
188
189 static inline isc_result_t
additionaldata_lp(ARGS_ADDLDATA)190 additionaldata_lp(ARGS_ADDLDATA) {
191 dns_name_t name;
192 dns_offsets_t offsets;
193 isc_region_t region;
194 isc_result_t result;
195
196 REQUIRE(rdata->type == dns_rdatatype_lp);
197
198 dns_name_init(&name, offsets);
199 dns_rdata_toregion(rdata, ®ion);
200 isc_region_consume(®ion, 2);
201 dns_name_fromregion(&name, ®ion);
202
203 result = (add)(arg, &name, dns_rdatatype_l32);
204 if (result != ISC_R_SUCCESS)
205 return (result);
206 return ((add)(arg, &name, dns_rdatatype_l64));
207 }
208
209 static inline isc_result_t
digest_lp(ARGS_DIGEST)210 digest_lp(ARGS_DIGEST) {
211 isc_region_t region;
212
213 REQUIRE(rdata->type == dns_rdatatype_lp);
214
215 dns_rdata_toregion(rdata, ®ion);
216 return ((digest)(arg, ®ion));
217 }
218
219 static inline isc_boolean_t
checkowner_lp(ARGS_CHECKOWNER)220 checkowner_lp(ARGS_CHECKOWNER) {
221
222 REQUIRE(type == dns_rdatatype_lp);
223
224 UNUSED(type);
225 UNUSED(rdclass);
226 UNUSED(name);
227 UNUSED(wildcard);
228
229 return (ISC_TRUE);
230 }
231
232 static inline isc_boolean_t
checknames_lp(ARGS_CHECKNAMES)233 checknames_lp(ARGS_CHECKNAMES) {
234
235 REQUIRE(rdata->type == dns_rdatatype_lp);
236
237 UNUSED(bad);
238 UNUSED(owner);
239
240 return (ISC_TRUE);
241 }
242
243 static inline int
casecompare_lp(ARGS_COMPARE)244 casecompare_lp(ARGS_COMPARE) {
245 dns_name_t name1;
246 dns_name_t name2;
247 isc_region_t region1;
248 isc_region_t region2;
249 int order;
250
251 REQUIRE(rdata1->type == rdata2->type);
252 REQUIRE(rdata1->rdclass == rdata2->rdclass);
253 REQUIRE(rdata1->type == dns_rdatatype_lp);
254 REQUIRE(rdata1->length != 0);
255 REQUIRE(rdata2->length != 0);
256
257 order = memcmp(rdata1->data, rdata2->data, 2);
258 if (order != 0)
259 return (order < 0 ? -1 : 1);
260
261 dns_name_init(&name1, NULL);
262 dns_name_init(&name2, NULL);
263
264 dns_rdata_toregion(rdata1, ®ion1);
265 dns_rdata_toregion(rdata2, ®ion2);
266
267 isc_region_consume(®ion1, 2);
268 isc_region_consume(®ion2, 2);
269
270 dns_name_fromregion(&name1, ®ion1);
271 dns_name_fromregion(&name2, ®ion2);
272
273 return (dns_name_rdatacompare(&name1, &name2));
274 }
275
276 #endif /* RDATA_GENERIC_LP_107_C */
277