1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/* RFC2672 */
#ifndef RDATA_GENERIC_DNAME_39_C
#define RDATA_GENERIC_DNAME_39_C
#define RRTYPE_DNAME_ATTRIBUTES (DNS_RDATATYPEATTR_SINGLETON)
static isc_result_t
fromtext_dname(ARGS_FROMTEXT) {
isc_token_t token;
dns_name_t name;
isc_buffer_t buffer;
REQUIRE(type == dns_rdatatype_dname);
UNUSED(type);
UNUSED(rdclass);
UNUSED(callbacks);
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
false));
dns_name_init(&name, NULL);
buffer_fromregion(&buffer, &token.value.as_region);
if (origin == NULL) {
origin = dns_rootname;
}
RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
return (ISC_R_SUCCESS);
}
static isc_result_t
totext_dname(ARGS_TOTEXT) {
isc_region_t region;
dns_name_t name;
dns_name_t prefix;
bool sub;
REQUIRE(rdata->type == dns_rdatatype_dname);
REQUIRE(rdata->length != 0);
dns_name_init(&name, NULL);
dns_name_init(&prefix, NULL);
dns_rdata_toregion(rdata, ®ion);
dns_name_fromregion(&name, ®ion);
sub = name_prefix(&name, tctx->origin, &prefix);
return (dns_name_totext(&prefix, sub, target));
}
static isc_result_t
fromwire_dname(ARGS_FROMWIRE) {
dns_name_t name;
REQUIRE(type == dns_rdatatype_dname);
UNUSED(type);
UNUSED(rdclass);
dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
dns_name_init(&name, NULL);
return (dns_name_fromwire(&name, source, dctx, options, target));
}
static isc_result_t
towire_dname(ARGS_TOWIRE) {
dns_name_t name;
dns_offsets_t offsets;
isc_region_t region;
REQUIRE(rdata->type == dns_rdatatype_dname);
REQUIRE(rdata->length != 0);
dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
dns_name_init(&name, offsets);
dns_rdata_toregion(rdata, ®ion);
dns_name_fromregion(&name, ®ion);
return (dns_name_towire(&name, cctx, target));
}
static int
compare_dname(ARGS_COMPARE) {
dns_name_t name1;
dns_name_t name2;
isc_region_t region1;
isc_region_t region2;
REQUIRE(rdata1->type == rdata2->type);
REQUIRE(rdata1->rdclass == rdata2->rdclass);
REQUIRE(rdata1->type == dns_rdatatype_dname);
REQUIRE(rdata1->length != 0);
REQUIRE(rdata2->length != 0);
dns_name_init(&name1, NULL);
dns_name_init(&name2, NULL);
dns_rdata_toregion(rdata1, ®ion1);
dns_rdata_toregion(rdata2, ®ion2);
dns_name_fromregion(&name1, ®ion1);
dns_name_fromregion(&name2, ®ion2);
return (dns_name_rdatacompare(&name1, &name2));
}
static isc_result_t
fromstruct_dname(ARGS_FROMSTRUCT) {
dns_rdata_dname_t *dname = source;
isc_region_t region;
REQUIRE(type == dns_rdatatype_dname);
REQUIRE(dname != NULL);
REQUIRE(dname->common.rdtype == type);
REQUIRE(dname->common.rdclass == rdclass);
UNUSED(type);
UNUSED(rdclass);
dns_name_toregion(&dname->dname, ®ion);
return (isc_buffer_copyregion(target, ®ion));
}
static isc_result_t
tostruct_dname(ARGS_TOSTRUCT) {
isc_region_t region;
dns_rdata_dname_t *dname = target;
dns_name_t name;
REQUIRE(rdata->type == dns_rdatatype_dname);
REQUIRE(dname != NULL);
REQUIRE(rdata->length != 0);
dname->common.rdclass = rdata->rdclass;
dname->common.rdtype = rdata->type;
ISC_LINK_INIT(&dname->common, link);
dns_name_init(&name, NULL);
dns_rdata_toregion(rdata, ®ion);
dns_name_fromregion(&name, ®ion);
dns_name_init(&dname->dname, NULL);
name_duporclone(&name, mctx, &dname->dname);
dname->mctx = mctx;
return (ISC_R_SUCCESS);
}
static void
freestruct_dname(ARGS_FREESTRUCT) {
dns_rdata_dname_t *dname = source;
REQUIRE(dname != NULL);
REQUIRE(dname->common.rdtype == dns_rdatatype_dname);
if (dname->mctx == NULL) {
return;
}
dns_name_free(&dname->dname, dname->mctx);
dname->mctx = NULL;
}
static isc_result_t
additionaldata_dname(ARGS_ADDLDATA) {
REQUIRE(rdata->type == dns_rdatatype_dname);
UNUSED(rdata);
UNUSED(owner);
UNUSED(add);
UNUSED(arg);
return (ISC_R_SUCCESS);
}
static isc_result_t
digest_dname(ARGS_DIGEST) {
isc_region_t r;
dns_name_t name;
REQUIRE(rdata->type == dns_rdatatype_dname);
dns_rdata_toregion(rdata, &r);
dns_name_init(&name, NULL);
dns_name_fromregion(&name, &r);
return (dns_name_digest(&name, digest, arg));
}
static bool
checkowner_dname(ARGS_CHECKOWNER) {
REQUIRE(type == dns_rdatatype_dname);
UNUSED(name);
UNUSED(type);
UNUSED(rdclass);
UNUSED(wildcard);
return (true);
}
static bool
checknames_dname(ARGS_CHECKNAMES) {
REQUIRE(rdata->type == dns_rdatatype_dname);
UNUSED(rdata);
UNUSED(owner);
UNUSED(bad);
return (true);
}
static int
casecompare_dname(ARGS_COMPARE) {
return (compare_dname(rdata1, rdata2));
}
#endif /* RDATA_GENERIC_DNAME_39_C */
|
