1 /* $NetBSD: eui48_108.c,v 1.7 2022/09/23 12:15:31 christos Exp $ */
2
3 /*
4 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
5 *
6 * SPDX-License-Identifier: MPL-2.0
7 *
8 * This Source Code Form is subject to the terms of the Mozilla Public
9 * License, v. 2.0. If a copy of the MPL was not distributed with this
10 * file, you can obtain one at https://mozilla.org/MPL/2.0/.
11 *
12 * See the COPYRIGHT file distributed with this work for additional
13 * information regarding copyright ownership.
14 */
15
16 #ifndef RDATA_GENERIC_EUI48_108_C
17 #define RDATA_GENERIC_EUI48_108_C
18
19 #include <string.h>
20
21 #define RRTYPE_EUI48_ATTRIBUTES (0)
22
23 static isc_result_t
fromtext_eui48(ARGS_FROMTEXT)24 fromtext_eui48(ARGS_FROMTEXT) {
25 isc_token_t token;
26 unsigned char eui48[6];
27 unsigned int l0, l1, l2, l3, l4, l5;
28 int n;
29
30 REQUIRE(type == dns_rdatatype_eui48);
31
32 UNUSED(type);
33 UNUSED(rdclass);
34 UNUSED(origin);
35 UNUSED(options);
36 UNUSED(callbacks);
37
38 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
39 false));
40 n = sscanf(DNS_AS_STR(token), "%2x-%2x-%2x-%2x-%2x-%2x", &l0, &l1, &l2,
41 &l3, &l4, &l5);
42 if (n != 6 || l0 > 255U || l1 > 255U || l2 > 255U || l3 > 255U ||
43 l4 > 255U || l5 > 255U)
44 {
45 return (DNS_R_BADEUI);
46 }
47
48 eui48[0] = l0;
49 eui48[1] = l1;
50 eui48[2] = l2;
51 eui48[3] = l3;
52 eui48[4] = l4;
53 eui48[5] = l5;
54 return (mem_tobuffer(target, eui48, sizeof(eui48)));
55 }
56
57 static isc_result_t
totext_eui48(ARGS_TOTEXT)58 totext_eui48(ARGS_TOTEXT) {
59 char buf[sizeof("xx-xx-xx-xx-xx-xx")];
60
61 REQUIRE(rdata->type == dns_rdatatype_eui48);
62 REQUIRE(rdata->length == 6);
63
64 UNUSED(tctx);
65
66 (void)snprintf(buf, sizeof(buf), "%02x-%02x-%02x-%02x-%02x-%02x",
67 rdata->data[0], rdata->data[1], rdata->data[2],
68 rdata->data[3], rdata->data[4], rdata->data[5]);
69 return (str_totext(buf, target));
70 }
71
72 static isc_result_t
fromwire_eui48(ARGS_FROMWIRE)73 fromwire_eui48(ARGS_FROMWIRE) {
74 isc_region_t sregion;
75
76 REQUIRE(type == dns_rdatatype_eui48);
77
78 UNUSED(type);
79 UNUSED(options);
80 UNUSED(rdclass);
81 UNUSED(dctx);
82
83 isc_buffer_activeregion(source, &sregion);
84 if (sregion.length != 6) {
85 return (DNS_R_FORMERR);
86 }
87 isc_buffer_forward(source, sregion.length);
88 return (mem_tobuffer(target, sregion.base, sregion.length));
89 }
90
91 static isc_result_t
towire_eui48(ARGS_TOWIRE)92 towire_eui48(ARGS_TOWIRE) {
93 REQUIRE(rdata->type == dns_rdatatype_eui48);
94 REQUIRE(rdata->length == 6);
95
96 UNUSED(cctx);
97
98 return (mem_tobuffer(target, rdata->data, rdata->length));
99 }
100
101 static int
compare_eui48(ARGS_COMPARE)102 compare_eui48(ARGS_COMPARE) {
103 isc_region_t region1;
104 isc_region_t region2;
105
106 REQUIRE(rdata1->type == rdata2->type);
107 REQUIRE(rdata1->rdclass == rdata2->rdclass);
108 REQUIRE(rdata1->type == dns_rdatatype_eui48);
109 REQUIRE(rdata1->length == 6);
110 REQUIRE(rdata2->length == 6);
111
112 dns_rdata_toregion(rdata1, ®ion1);
113 dns_rdata_toregion(rdata2, ®ion2);
114 return (isc_region_compare(®ion1, ®ion2));
115 }
116
117 static isc_result_t
fromstruct_eui48(ARGS_FROMSTRUCT)118 fromstruct_eui48(ARGS_FROMSTRUCT) {
119 dns_rdata_eui48_t *eui48 = source;
120
121 REQUIRE(type == dns_rdatatype_eui48);
122 REQUIRE(eui48 != NULL);
123 REQUIRE(eui48->common.rdtype == type);
124 REQUIRE(eui48->common.rdclass == rdclass);
125
126 UNUSED(type);
127 UNUSED(rdclass);
128
129 return (mem_tobuffer(target, eui48->eui48, sizeof(eui48->eui48)));
130 }
131
132 static isc_result_t
tostruct_eui48(ARGS_TOSTRUCT)133 tostruct_eui48(ARGS_TOSTRUCT) {
134 dns_rdata_eui48_t *eui48 = target;
135
136 REQUIRE(rdata->type == dns_rdatatype_eui48);
137 REQUIRE(eui48 != NULL);
138 REQUIRE(rdata->length == 6);
139
140 UNUSED(mctx);
141
142 eui48->common.rdclass = rdata->rdclass;
143 eui48->common.rdtype = rdata->type;
144 ISC_LINK_INIT(&eui48->common, link);
145
146 memmove(eui48->eui48, rdata->data, rdata->length);
147 return (ISC_R_SUCCESS);
148 }
149
150 static void
freestruct_eui48(ARGS_FREESTRUCT)151 freestruct_eui48(ARGS_FREESTRUCT) {
152 dns_rdata_eui48_t *eui48 = source;
153
154 REQUIRE(eui48 != NULL);
155 REQUIRE(eui48->common.rdtype == dns_rdatatype_eui48);
156
157 return;
158 }
159
160 static isc_result_t
additionaldata_eui48(ARGS_ADDLDATA)161 additionaldata_eui48(ARGS_ADDLDATA) {
162 REQUIRE(rdata->type == dns_rdatatype_eui48);
163 REQUIRE(rdata->length == 6);
164
165 UNUSED(rdata);
166 UNUSED(add);
167 UNUSED(arg);
168
169 return (ISC_R_SUCCESS);
170 }
171
172 static isc_result_t
digest_eui48(ARGS_DIGEST)173 digest_eui48(ARGS_DIGEST) {
174 isc_region_t r;
175
176 REQUIRE(rdata->type == dns_rdatatype_eui48);
177 REQUIRE(rdata->length == 6);
178
179 dns_rdata_toregion(rdata, &r);
180
181 return ((digest)(arg, &r));
182 }
183
184 static bool
checkowner_eui48(ARGS_CHECKOWNER)185 checkowner_eui48(ARGS_CHECKOWNER) {
186 REQUIRE(type == dns_rdatatype_eui48);
187
188 UNUSED(name);
189 UNUSED(type);
190 UNUSED(rdclass);
191 UNUSED(wildcard);
192
193 return (true);
194 }
195
196 static bool
checknames_eui48(ARGS_CHECKNAMES)197 checknames_eui48(ARGS_CHECKNAMES) {
198 REQUIRE(rdata->type == dns_rdatatype_eui48);
199 REQUIRE(rdata->length == 6);
200
201 UNUSED(rdata);
202 UNUSED(owner);
203 UNUSED(bad);
204
205 return (true);
206 }
207
208 static int
casecompare_eui48(ARGS_COMPARE)209 casecompare_eui48(ARGS_COMPARE) {
210 return (compare_eui48(rdata1, rdata2));
211 }
212
213 #endif /* RDATA_GENERIC_EUI48_108_C */
214