diff options
Diffstat (limited to 'lib/dns/rdata/generic/tlsa_52.c')
| -rw-r--r-- | lib/dns/rdata/generic/tlsa_52.c | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/lib/dns/rdata/generic/tlsa_52.c b/lib/dns/rdata/generic/tlsa_52.c new file mode 100644 index 0000000..8489dd9 --- /dev/null +++ b/lib/dns/rdata/generic/tlsa_52.c @@ -0,0 +1,340 @@ +/* + * 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. + */ + +/* rfc6698.txt */ + +#ifndef RDATA_GENERIC_TLSA_52_C +#define RDATA_GENERIC_TLSA_52_C + +#define RRTYPE_TLSA_ATTRIBUTES 0 + +static isc_result_t +generic_fromtext_tlsa(ARGS_FROMTEXT) { + isc_token_t token; + + UNUSED(type); + UNUSED(rdclass); + UNUSED(origin); + UNUSED(options); + UNUSED(callbacks); + + /* + * Certificate Usage. + */ + RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, + false)); + if (token.value.as_ulong > 0xffU) { + RETTOK(ISC_R_RANGE); + } + RETERR(uint8_tobuffer(token.value.as_ulong, target)); + + /* + * Selector. + */ + RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, + false)); + if (token.value.as_ulong > 0xffU) { + RETTOK(ISC_R_RANGE); + } + RETERR(uint8_tobuffer(token.value.as_ulong, target)); + + /* + * Matching type. + */ + RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, + false)); + if (token.value.as_ulong > 0xffU) { + RETTOK(ISC_R_RANGE); + } + RETERR(uint8_tobuffer(token.value.as_ulong, target)); + + /* + * Certificate Association Data. + */ + return (isc_hex_tobuffer(lexer, target, -2)); +} + +static isc_result_t +generic_totext_tlsa(ARGS_TOTEXT) { + isc_region_t sr; + char buf[sizeof("64000 ")]; + unsigned int n; + + REQUIRE(rdata->length != 0); + + UNUSED(tctx); + + dns_rdata_toregion(rdata, &sr); + + /* + * Certificate Usage. + */ + n = uint8_fromregion(&sr); + isc_region_consume(&sr, 1); + snprintf(buf, sizeof(buf), "%u ", n); + RETERR(str_totext(buf, target)); + + /* + * Selector. + */ + n = uint8_fromregion(&sr); + isc_region_consume(&sr, 1); + snprintf(buf, sizeof(buf), "%u ", n); + RETERR(str_totext(buf, target)); + + /* + * Matching type. + */ + n = uint8_fromregion(&sr); + isc_region_consume(&sr, 1); + snprintf(buf, sizeof(buf), "%u", n); + RETERR(str_totext(buf, target)); + + /* + * Certificate Association Data. + */ + if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) { + RETERR(str_totext(" (", target)); + } + RETERR(str_totext(tctx->linebreak, target)); + if (tctx->width == 0) { /* No splitting */ + RETERR(isc_hex_totext(&sr, 0, "", target)); + } else { + RETERR(isc_hex_totext(&sr, tctx->width - 2, tctx->linebreak, + target)); + } + if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) { + RETERR(str_totext(" )", target)); + } + return (ISC_R_SUCCESS); +} + +static isc_result_t +generic_fromwire_tlsa(ARGS_FROMWIRE) { + isc_region_t sr; + + UNUSED(type); + UNUSED(rdclass); + UNUSED(dctx); + UNUSED(options); + + isc_buffer_activeregion(source, &sr); + + /* Usage(1), Selector(1), Type(1), Data(1+) */ + if (sr.length < 4) { + return (ISC_R_UNEXPECTEDEND); + } + + isc_buffer_forward(source, sr.length); + return (mem_tobuffer(target, sr.base, sr.length)); +} + +static isc_result_t +fromtext_tlsa(ARGS_FROMTEXT) { + REQUIRE(type == dns_rdatatype_tlsa); + + return (generic_fromtext_tlsa(CALL_FROMTEXT)); +} + +static isc_result_t +totext_tlsa(ARGS_TOTEXT) { + REQUIRE(rdata->type == dns_rdatatype_tlsa); + + return (generic_totext_tlsa(CALL_TOTEXT)); +} + +static isc_result_t +fromwire_tlsa(ARGS_FROMWIRE) { + REQUIRE(type == dns_rdatatype_tlsa); + + return (generic_fromwire_tlsa(CALL_FROMWIRE)); +} + +static isc_result_t +towire_tlsa(ARGS_TOWIRE) { + isc_region_t sr; + + REQUIRE(rdata->type == dns_rdatatype_tlsa); + REQUIRE(rdata->length != 0); + + UNUSED(cctx); + + dns_rdata_toregion(rdata, &sr); + return (mem_tobuffer(target, sr.base, sr.length)); +} + +static int +compare_tlsa(ARGS_COMPARE) { + isc_region_t r1; + isc_region_t r2; + + REQUIRE(rdata1->type == rdata2->type); + REQUIRE(rdata1->rdclass == rdata2->rdclass); + REQUIRE(rdata1->type == dns_rdatatype_tlsa); + REQUIRE(rdata1->length != 0); + REQUIRE(rdata2->length != 0); + + dns_rdata_toregion(rdata1, &r1); + dns_rdata_toregion(rdata2, &r2); + return (isc_region_compare(&r1, &r2)); +} + +static isc_result_t +generic_fromstruct_tlsa(ARGS_FROMSTRUCT) { + dns_rdata_tlsa_t *tlsa = source; + + REQUIRE(tlsa != NULL); + REQUIRE(tlsa->common.rdtype == type); + REQUIRE(tlsa->common.rdclass == rdclass); + + UNUSED(type); + UNUSED(rdclass); + + RETERR(uint8_tobuffer(tlsa->usage, target)); + RETERR(uint8_tobuffer(tlsa->selector, target)); + RETERR(uint8_tobuffer(tlsa->match, target)); + + return (mem_tobuffer(target, tlsa->data, tlsa->length)); +} + +static isc_result_t +generic_tostruct_tlsa(ARGS_TOSTRUCT) { + dns_rdata_tlsa_t *tlsa = target; + isc_region_t region; + + REQUIRE(tlsa != NULL); + REQUIRE(rdata->length != 0); + + REQUIRE(tlsa != NULL); + REQUIRE(tlsa->common.rdclass == rdata->rdclass); + REQUIRE(tlsa->common.rdtype == rdata->type); + REQUIRE(!ISC_LINK_LINKED(&tlsa->common, link)); + + dns_rdata_toregion(rdata, ®ion); + + tlsa->usage = uint8_fromregion(®ion); + isc_region_consume(®ion, 1); + tlsa->selector = uint8_fromregion(®ion); + isc_region_consume(®ion, 1); + tlsa->match = uint8_fromregion(®ion); + isc_region_consume(®ion, 1); + tlsa->length = region.length; + + tlsa->data = mem_maybedup(mctx, region.base, region.length); + if (tlsa->data == NULL) { + return (ISC_R_NOMEMORY); + } + + tlsa->mctx = mctx; + return (ISC_R_SUCCESS); +} + +static void +generic_freestruct_tlsa(ARGS_FREESTRUCT) { + dns_rdata_tlsa_t *tlsa = source; + + REQUIRE(tlsa != NULL); + + if (tlsa->mctx == NULL) { + return; + } + + if (tlsa->data != NULL) { + isc_mem_free(tlsa->mctx, tlsa->data); + } + tlsa->mctx = NULL; +} + +static isc_result_t +fromstruct_tlsa(ARGS_FROMSTRUCT) { + REQUIRE(type == dns_rdatatype_tlsa); + + return (generic_fromstruct_tlsa(CALL_FROMSTRUCT)); +} + +static isc_result_t +tostruct_tlsa(ARGS_TOSTRUCT) { + dns_rdata_tlsa_t *tlsa = target; + + REQUIRE(rdata->type == dns_rdatatype_tlsa); + REQUIRE(tlsa != NULL); + + tlsa->common.rdclass = rdata->rdclass; + tlsa->common.rdtype = rdata->type; + ISC_LINK_INIT(&tlsa->common, link); + + return (generic_tostruct_tlsa(CALL_TOSTRUCT)); +} + +static void +freestruct_tlsa(ARGS_FREESTRUCT) { + dns_rdata_tlsa_t *tlsa = source; + + REQUIRE(tlsa != NULL); + REQUIRE(tlsa->common.rdtype == dns_rdatatype_tlsa); + + generic_freestruct_tlsa(source); +} + +static isc_result_t +additionaldata_tlsa(ARGS_ADDLDATA) { + REQUIRE(rdata->type == dns_rdatatype_tlsa); + + UNUSED(rdata); + UNUSED(owner); + UNUSED(add); + UNUSED(arg); + + return (ISC_R_SUCCESS); +} + +static isc_result_t +digest_tlsa(ARGS_DIGEST) { + isc_region_t r; + + REQUIRE(rdata->type == dns_rdatatype_tlsa); + + dns_rdata_toregion(rdata, &r); + + return ((digest)(arg, &r)); +} + +static bool +checkowner_tlsa(ARGS_CHECKOWNER) { + REQUIRE(type == dns_rdatatype_tlsa); + + UNUSED(name); + UNUSED(type); + UNUSED(rdclass); + UNUSED(wildcard); + + return (true); +} + +static bool +checknames_tlsa(ARGS_CHECKNAMES) { + REQUIRE(rdata->type == dns_rdatatype_tlsa); + + UNUSED(rdata); + UNUSED(owner); + UNUSED(bad); + + return (true); +} + +static int +casecompare_tlsa(ARGS_COMPARE) { + return (compare_tlsa(rdata1, rdata2)); +} + +#endif /* RDATA_GENERIC_TLSA_52_C */ |