1 /*
2 * Copyright (C) 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 /* rfc6698.txt */
18
19 #ifndef RDATA_GENERIC_TLSA_52_C
20 #define RDATA_GENERIC_TLSA_52_C
21
22 static inline isc_result_t
generic_totext_tlsa(ARGS_TOTEXT)23 generic_totext_tlsa(ARGS_TOTEXT) {
24 isc_region_t sr;
25 char buf[sizeof("64000 ")];
26 unsigned int n;
27
28 REQUIRE(rdata->length != 0);
29
30 UNUSED(tctx);
31
32 dns_rdata_toregion(rdata, &sr);
33
34 /*
35 * Certificate Usage.
36 */
37 n = uint8_fromregion(&sr);
38 isc_region_consume(&sr, 1);
39 snprintf(buf, sizeof(buf), "%u ", n);
40 RETERR(isc_str_tobuffer(buf, target));
41
42 /*
43 * Selector.
44 */
45 n = uint8_fromregion(&sr);
46 isc_region_consume(&sr, 1);
47 snprintf(buf, sizeof(buf), "%u ", n);
48 RETERR(isc_str_tobuffer(buf, target));
49
50 /*
51 * Matching type.
52 */
53 n = uint8_fromregion(&sr);
54 isc_region_consume(&sr, 1);
55 snprintf(buf, sizeof(buf), "%u", n);
56 RETERR(isc_str_tobuffer(buf, target));
57
58 /*
59 * Certificate Association Data.
60 */
61 if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
62 RETERR(isc_str_tobuffer(" (", target));
63 RETERR(isc_str_tobuffer(tctx->linebreak, target));
64 if (tctx->width == 0) /* No splitting */
65 RETERR(isc_hex_totext(&sr, 0, "", target));
66 else
67 RETERR(isc_hex_totext(&sr, tctx->width - 2,
68 tctx->linebreak, target));
69 if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
70 RETERR(isc_str_tobuffer(" )", target));
71 return (ISC_R_SUCCESS);
72 }
73
74 static inline isc_result_t
generic_fromwire_tlsa(ARGS_FROMWIRE)75 generic_fromwire_tlsa(ARGS_FROMWIRE) {
76 isc_region_t sr;
77
78 UNUSED(type);
79 UNUSED(rdclass);
80 UNUSED(dctx);
81 UNUSED(options);
82
83 isc_buffer_activeregion(source, &sr);
84
85 if (sr.length < 3)
86 return (ISC_R_UNEXPECTEDEND);
87
88 isc_buffer_forward(source, sr.length);
89 return (isc_mem_tobuffer(target, sr.base, sr.length));
90 }
91
92 static inline isc_result_t
totext_tlsa(ARGS_TOTEXT)93 totext_tlsa(ARGS_TOTEXT) {
94
95 REQUIRE(rdata->type == dns_rdatatype_tlsa);
96
97 return (generic_totext_tlsa(rdata, tctx, target));
98 }
99
100 static inline isc_result_t
fromwire_tlsa(ARGS_FROMWIRE)101 fromwire_tlsa(ARGS_FROMWIRE) {
102
103 REQUIRE(type == dns_rdatatype_tlsa);
104
105 return (generic_fromwire_tlsa(rdclass, type, source, dctx, options,
106 target));
107 }
108
109 static inline isc_result_t
towire_tlsa(ARGS_TOWIRE)110 towire_tlsa(ARGS_TOWIRE) {
111 isc_region_t sr;
112
113 REQUIRE(rdata->type == dns_rdatatype_tlsa);
114 REQUIRE(rdata->length != 0);
115
116 UNUSED(cctx);
117
118 dns_rdata_toregion(rdata, &sr);
119 return (isc_mem_tobuffer(target, sr.base, sr.length));
120 }
121
122 #endif /* RDATA_GENERIC_TLSA_52_C */
123