mirror of
https://gitlab.isc.org/isc-projects/bind9
synced 2025-08-29 05:28:00 +00:00
a88d3963e2
add matching macros to pass arguments from called methods to generic methods. This will reduce the amount of work required when extending methods. Also cleanup unnecessary UNUSED declarations.
384 lines
8.1 KiB
C
384 lines
8.1 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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/* RFC3658 */
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#ifndef RDATA_GENERIC_DS_43_C
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#define RDATA_GENERIC_DS_43_C
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#define RRTYPE_DS_ATTRIBUTES \
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(DNS_RDATATYPEATTR_DNSSEC | DNS_RDATATYPEATTR_ZONECUTAUTH | \
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DNS_RDATATYPEATTR_ATPARENT)
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#include <isc/md.h>
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#include <dns/ds.h>
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static inline isc_result_t
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generic_fromtext_ds(ARGS_FROMTEXT) {
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isc_token_t token;
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unsigned char c;
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int length;
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UNUSED(type);
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UNUSED(rdclass);
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UNUSED(origin);
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UNUSED(options);
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UNUSED(callbacks);
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/*
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* Key tag.
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*/
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RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
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false));
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if (token.value.as_ulong > 0xffffU) {
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RETTOK(ISC_R_RANGE);
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}
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RETERR(uint16_tobuffer(token.value.as_ulong, target));
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/*
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* Algorithm.
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*/
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RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
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false));
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RETTOK(dns_secalg_fromtext(&c, &token.value.as_textregion));
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RETERR(mem_tobuffer(target, &c, 1));
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/*
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* Digest type.
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*/
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RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
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false));
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RETTOK(dns_dsdigest_fromtext(&c, &token.value.as_textregion));
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RETERR(mem_tobuffer(target, &c, 1));
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/*
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* Digest.
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*/
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switch (c) {
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case DNS_DSDIGEST_SHA1:
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length = ISC_SHA1_DIGESTLENGTH;
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break;
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case DNS_DSDIGEST_SHA256:
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length = ISC_SHA256_DIGESTLENGTH;
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break;
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case DNS_DSDIGEST_SHA384:
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length = ISC_SHA384_DIGESTLENGTH;
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break;
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default:
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length = -2;
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break;
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}
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return (isc_hex_tobuffer(lexer, target, length));
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}
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static inline isc_result_t
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fromtext_ds(ARGS_FROMTEXT) {
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REQUIRE(type == dns_rdatatype_ds);
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return (generic_fromtext_ds(CALL_FROMTEXT));
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}
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static inline isc_result_t
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generic_totext_ds(ARGS_TOTEXT) {
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isc_region_t sr;
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char buf[sizeof("64000 ")];
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unsigned int n;
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REQUIRE(rdata->length != 0);
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UNUSED(tctx);
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dns_rdata_toregion(rdata, &sr);
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/*
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* Key tag.
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*/
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n = uint16_fromregion(&sr);
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isc_region_consume(&sr, 2);
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snprintf(buf, sizeof(buf), "%u ", n);
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RETERR(str_totext(buf, target));
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/*
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* Algorithm.
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*/
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n = uint8_fromregion(&sr);
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isc_region_consume(&sr, 1);
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snprintf(buf, sizeof(buf), "%u ", n);
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RETERR(str_totext(buf, target));
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/*
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* Digest type.
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*/
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n = uint8_fromregion(&sr);
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isc_region_consume(&sr, 1);
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snprintf(buf, sizeof(buf), "%u", n);
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RETERR(str_totext(buf, target));
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/*
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* Digest.
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*/
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if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) {
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RETERR(str_totext(" (", target));
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}
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RETERR(str_totext(tctx->linebreak, target));
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if ((tctx->flags & DNS_STYLEFLAG_NOCRYPTO) == 0) {
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if (tctx->width == 0) { /* No splitting */
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RETERR(isc_hex_totext(&sr, 0, "", target));
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} else {
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RETERR(isc_hex_totext(&sr, tctx->width - 2,
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tctx->linebreak, target));
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}
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} else {
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RETERR(str_totext("[omitted]", target));
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}
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if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) {
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RETERR(str_totext(" )", target));
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}
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return (ISC_R_SUCCESS);
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}
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static inline isc_result_t
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totext_ds(ARGS_TOTEXT) {
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REQUIRE(rdata != NULL);
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REQUIRE(rdata->type == dns_rdatatype_ds);
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return (generic_totext_ds(CALL_TOTEXT));
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}
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static inline isc_result_t
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generic_fromwire_ds(ARGS_FROMWIRE) {
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isc_region_t sr;
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UNUSED(type);
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UNUSED(rdclass);
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UNUSED(dctx);
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UNUSED(options);
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isc_buffer_activeregion(source, &sr);
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/*
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* Check digest lengths if we know them.
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*/
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if (sr.length < 5 ||
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(sr.base[3] == DNS_DSDIGEST_SHA1 &&
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sr.length < 4 + ISC_SHA1_DIGESTLENGTH) ||
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(sr.base[3] == DNS_DSDIGEST_SHA256 &&
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sr.length < 4 + ISC_SHA256_DIGESTLENGTH) ||
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(sr.base[3] == DNS_DSDIGEST_SHA384 &&
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sr.length < 4 + ISC_SHA384_DIGESTLENGTH))
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{
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return (ISC_R_UNEXPECTEDEND);
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}
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/*
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* Only copy digest lengths if we know them.
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* If there is extra data dns_rdata_fromwire() will
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* detect that.
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*/
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if (sr.base[3] == DNS_DSDIGEST_SHA1) {
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sr.length = 4 + ISC_SHA1_DIGESTLENGTH;
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} else if (sr.base[3] == DNS_DSDIGEST_SHA256) {
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sr.length = 4 + ISC_SHA256_DIGESTLENGTH;
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} else if (sr.base[3] == DNS_DSDIGEST_SHA384) {
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sr.length = 4 + ISC_SHA384_DIGESTLENGTH;
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}
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isc_buffer_forward(source, sr.length);
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return (mem_tobuffer(target, sr.base, sr.length));
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}
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static inline isc_result_t
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fromwire_ds(ARGS_FROMWIRE) {
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REQUIRE(type == dns_rdatatype_ds);
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return (generic_fromwire_ds(CALL_FROMWIRE));
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}
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static inline isc_result_t
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towire_ds(ARGS_TOWIRE) {
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isc_region_t sr;
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REQUIRE(rdata->type == dns_rdatatype_ds);
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REQUIRE(rdata->length != 0);
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UNUSED(cctx);
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dns_rdata_toregion(rdata, &sr);
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return (mem_tobuffer(target, sr.base, sr.length));
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}
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static inline int
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compare_ds(ARGS_COMPARE) {
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isc_region_t r1;
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isc_region_t r2;
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REQUIRE(rdata1->type == rdata2->type);
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REQUIRE(rdata1->rdclass == rdata2->rdclass);
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REQUIRE(rdata1->type == dns_rdatatype_ds);
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REQUIRE(rdata1->length != 0);
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REQUIRE(rdata2->length != 0);
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dns_rdata_toregion(rdata1, &r1);
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dns_rdata_toregion(rdata2, &r2);
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return (isc_region_compare(&r1, &r2));
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}
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static inline isc_result_t
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generic_fromstruct_ds(ARGS_FROMSTRUCT) {
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dns_rdata_ds_t *ds = source;
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REQUIRE(ds != NULL);
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REQUIRE(ds->common.rdtype == type);
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REQUIRE(ds->common.rdclass == rdclass);
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UNUSED(type);
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UNUSED(rdclass);
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switch (ds->digest_type) {
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case DNS_DSDIGEST_SHA1:
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REQUIRE(ds->length == ISC_SHA1_DIGESTLENGTH);
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break;
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case DNS_DSDIGEST_SHA256:
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REQUIRE(ds->length == ISC_SHA256_DIGESTLENGTH);
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break;
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case DNS_DSDIGEST_SHA384:
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REQUIRE(ds->length == ISC_SHA384_DIGESTLENGTH);
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break;
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}
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RETERR(uint16_tobuffer(ds->key_tag, target));
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RETERR(uint8_tobuffer(ds->algorithm, target));
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RETERR(uint8_tobuffer(ds->digest_type, target));
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return (mem_tobuffer(target, ds->digest, ds->length));
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}
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static inline isc_result_t
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fromstruct_ds(ARGS_FROMSTRUCT) {
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REQUIRE(type == dns_rdatatype_ds);
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return (generic_fromstruct_ds(CALL_FROMSTRUCT));
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}
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static inline isc_result_t
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generic_tostruct_ds(ARGS_TOSTRUCT) {
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dns_rdata_ds_t *ds = target;
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isc_region_t region;
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REQUIRE(ds != NULL);
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REQUIRE(rdata->length != 0);
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REQUIRE(ds->common.rdtype == rdata->type);
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REQUIRE(ds->common.rdclass == rdata->rdclass);
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REQUIRE(!ISC_LINK_LINKED(&ds->common, link));
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dns_rdata_toregion(rdata, ®ion);
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ds->key_tag = uint16_fromregion(®ion);
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isc_region_consume(®ion, 2);
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ds->algorithm = uint8_fromregion(®ion);
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isc_region_consume(®ion, 1);
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ds->digest_type = uint8_fromregion(®ion);
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isc_region_consume(®ion, 1);
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ds->length = region.length;
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ds->digest = mem_maybedup(mctx, region.base, region.length);
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if (ds->digest == NULL) {
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return (ISC_R_NOMEMORY);
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}
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ds->mctx = mctx;
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return (ISC_R_SUCCESS);
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}
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static inline isc_result_t
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tostruct_ds(ARGS_TOSTRUCT) {
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dns_rdata_ds_t *ds = target;
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REQUIRE(rdata->type == dns_rdatatype_ds);
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REQUIRE(ds != NULL);
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ds->common.rdclass = rdata->rdclass;
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ds->common.rdtype = rdata->type;
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ISC_LINK_INIT(&ds->common, link);
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return (generic_tostruct_ds(CALL_TOSTRUCT));
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}
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static inline void
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freestruct_ds(ARGS_FREESTRUCT) {
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dns_rdata_ds_t *ds = source;
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REQUIRE(ds != NULL);
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REQUIRE(ds->common.rdtype == dns_rdatatype_ds);
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if (ds->mctx == NULL) {
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return;
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}
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if (ds->digest != NULL) {
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isc_mem_free(ds->mctx, ds->digest);
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}
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ds->mctx = NULL;
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}
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static inline isc_result_t
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additionaldata_ds(ARGS_ADDLDATA) {
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REQUIRE(rdata->type == dns_rdatatype_ds);
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UNUSED(rdata);
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UNUSED(add);
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UNUSED(arg);
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return (ISC_R_SUCCESS);
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}
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static inline isc_result_t
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digest_ds(ARGS_DIGEST) {
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isc_region_t r;
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REQUIRE(rdata->type == dns_rdatatype_ds);
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dns_rdata_toregion(rdata, &r);
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return ((digest)(arg, &r));
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}
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static inline bool
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checkowner_ds(ARGS_CHECKOWNER) {
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REQUIRE(type == dns_rdatatype_ds);
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UNUSED(name);
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UNUSED(type);
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UNUSED(rdclass);
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UNUSED(wildcard);
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return (true);
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}
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static inline bool
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checknames_ds(ARGS_CHECKNAMES) {
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REQUIRE(rdata->type == dns_rdatatype_ds);
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UNUSED(rdata);
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UNUSED(owner);
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UNUSED(bad);
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return (true);
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}
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static inline int
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casecompare_ds(ARGS_COMPARE) {
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return (compare_ds(rdata1, rdata2));
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}
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#endif /* RDATA_GENERIC_DS_43_C */
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