313 lines
6.8 KiB
C
313 lines
6.8 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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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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/* http://www.broadband-forum.org/ftp/pub/approved-specs/af-dans-0152.000.pdf */
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#ifndef RDATA_IN_1_ATMA_22_C
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#define RDATA_IN_1_ATMA_22_C
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#define RRTYPE_ATMA_ATTRIBUTES (0)
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static isc_result_t
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fromtext_in_atma(ARGS_FROMTEXT) {
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isc_token_t token;
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isc_textregion_t *sr;
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int n;
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bool valid = false;
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bool lastwasperiod = true; /* leading periods not allowed */
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int digits = 0;
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unsigned char c = 0;
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REQUIRE(type == dns_rdatatype_atma);
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REQUIRE(rdclass == dns_rdataclass_in);
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UNUSED(type);
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UNUSED(origin);
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UNUSED(options);
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UNUSED(rdclass);
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UNUSED(callbacks);
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/* ATM End System Address (AESA) format or E.164 */
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RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
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false));
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sr = &token.value.as_textregion;
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if (sr->length < 1) {
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RETTOK(ISC_R_UNEXPECTEDEND);
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}
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if (sr->base[0] != '+') {
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/*
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* Format 0: ATM End System Address (AESA) format.
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*/
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c = 0;
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RETERR(mem_tobuffer(target, &c, 1));
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while (sr->length > 0) {
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if (sr->base[0] == '.') {
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if (lastwasperiod) {
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RETTOK(DNS_R_SYNTAX);
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}
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isc_textregion_consume(sr, 1);
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lastwasperiod = true;
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continue;
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}
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if ((n = hexvalue(sr->base[0])) == -1) {
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RETTOK(DNS_R_SYNTAX);
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}
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c <<= 4;
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c += n;
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if (++digits == 2) {
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RETERR(mem_tobuffer(target, &c, 1));
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valid = true;
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digits = 0;
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c = 0;
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}
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isc_textregion_consume(sr, 1);
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lastwasperiod = false;
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}
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if (digits != 0 || !valid || lastwasperiod) {
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RETTOK(ISC_R_UNEXPECTEDEND);
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}
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} else {
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/*
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* Format 1: E.164.
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*/
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c = 1;
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RETERR(mem_tobuffer(target, &c, 1));
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isc_textregion_consume(sr, 1);
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while (sr->length > 0) {
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if (sr->base[0] == '.') {
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if (lastwasperiod) {
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RETTOK(DNS_R_SYNTAX);
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}
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isc_textregion_consume(sr, 1);
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lastwasperiod = true;
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continue;
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}
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if (!isdigit((unsigned char)sr->base[0])) {
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RETTOK(DNS_R_SYNTAX);
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}
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RETERR(mem_tobuffer(target, sr->base, 1));
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isc_textregion_consume(sr, 1);
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lastwasperiod = false;
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}
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if (lastwasperiod) {
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RETTOK(ISC_R_UNEXPECTEDEND);
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}
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}
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return ISC_R_SUCCESS;
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}
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static isc_result_t
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totext_in_atma(ARGS_TOTEXT) {
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isc_region_t region;
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char buf[sizeof("xx")];
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REQUIRE(rdata->type == dns_rdatatype_atma);
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REQUIRE(rdata->rdclass == dns_rdataclass_in);
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REQUIRE(rdata->length != 0);
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UNUSED(tctx);
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dns_rdata_toregion(rdata, ®ion);
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INSIST(region.length > 1);
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switch (region.base[0]) {
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case 0:
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isc_region_consume(®ion, 1);
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while (region.length != 0) {
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snprintf(buf, sizeof(buf), "%02x", region.base[0]);
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isc_region_consume(®ion, 1);
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RETERR(str_totext(buf, target));
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}
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break;
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case 1:
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RETERR(str_totext("+", target));
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isc_region_consume(®ion, 1);
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RETERR(mem_tobuffer(target, region.base, region.length));
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break;
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default:
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return ISC_R_NOTIMPLEMENTED;
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}
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return ISC_R_SUCCESS;
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}
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static isc_result_t
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fromwire_in_atma(ARGS_FROMWIRE) {
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isc_region_t region;
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REQUIRE(type == dns_rdatatype_atma);
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REQUIRE(rdclass == dns_rdataclass_in);
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UNUSED(type);
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UNUSED(dctx);
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UNUSED(rdclass);
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isc_buffer_activeregion(source, ®ion);
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if (region.length < 2) {
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return ISC_R_UNEXPECTEDEND;
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}
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if (region.base[0] == 1) {
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unsigned int i;
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for (i = 1; i < region.length; i++) {
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if (!isdigit((unsigned char)region.base[i])) {
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return DNS_R_FORMERR;
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}
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}
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}
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RETERR(mem_tobuffer(target, region.base, region.length));
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isc_buffer_forward(source, region.length);
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return ISC_R_SUCCESS;
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}
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static isc_result_t
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towire_in_atma(ARGS_TOWIRE) {
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REQUIRE(rdata->type == dns_rdatatype_atma);
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REQUIRE(rdata->rdclass == dns_rdataclass_in);
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REQUIRE(rdata->length != 0);
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UNUSED(cctx);
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return mem_tobuffer(target, rdata->data, rdata->length);
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}
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static int
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compare_in_atma(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_atma);
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REQUIRE(rdata1->rdclass == dns_rdataclass_in);
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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 isc_result_t
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fromstruct_in_atma(ARGS_FROMSTRUCT) {
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dns_rdata_in_atma_t *atma = source;
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REQUIRE(type == dns_rdatatype_atma);
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REQUIRE(rdclass == dns_rdataclass_in);
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REQUIRE(atma != NULL);
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REQUIRE(atma->common.rdtype == type);
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REQUIRE(atma->common.rdclass == rdclass);
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REQUIRE(atma->atma != NULL || atma->atma_len == 0);
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UNUSED(type);
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UNUSED(rdclass);
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RETERR(mem_tobuffer(target, &atma->format, 1));
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return mem_tobuffer(target, atma->atma, atma->atma_len);
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}
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static isc_result_t
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tostruct_in_atma(ARGS_TOSTRUCT) {
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dns_rdata_in_atma_t *atma = target;
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isc_region_t r;
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REQUIRE(rdata->type == dns_rdatatype_atma);
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REQUIRE(rdata->rdclass == dns_rdataclass_in);
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REQUIRE(atma != NULL);
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REQUIRE(rdata->length != 0);
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atma->common.rdclass = rdata->rdclass;
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atma->common.rdtype = rdata->type;
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ISC_LINK_INIT(&atma->common, link);
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dns_rdata_toregion(rdata, &r);
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atma->format = r.base[0];
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isc_region_consume(&r, 1);
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atma->atma_len = r.length;
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atma->atma = mem_maybedup(mctx, r.base, r.length);
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atma->mctx = mctx;
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return ISC_R_SUCCESS;
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}
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static void
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freestruct_in_atma(ARGS_FREESTRUCT) {
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dns_rdata_in_atma_t *atma = source;
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REQUIRE(atma != NULL);
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REQUIRE(atma->common.rdclass == dns_rdataclass_in);
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REQUIRE(atma->common.rdtype == dns_rdatatype_atma);
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if (atma->mctx == NULL) {
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return;
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}
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if (atma->atma != NULL) {
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isc_mem_free(atma->mctx, atma->atma);
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}
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atma->mctx = NULL;
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}
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static isc_result_t
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additionaldata_in_atma(ARGS_ADDLDATA) {
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REQUIRE(rdata->type == dns_rdatatype_atma);
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REQUIRE(rdata->rdclass == dns_rdataclass_in);
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UNUSED(rdata);
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UNUSED(owner);
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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 isc_result_t
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digest_in_atma(ARGS_DIGEST) {
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isc_region_t r;
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REQUIRE(rdata->type == dns_rdatatype_atma);
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REQUIRE(rdata->rdclass == dns_rdataclass_in);
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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 bool
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checkowner_in_atma(ARGS_CHECKOWNER) {
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REQUIRE(type == dns_rdatatype_atma);
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REQUIRE(rdclass == dns_rdataclass_in);
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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 bool
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checknames_in_atma(ARGS_CHECKNAMES) {
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REQUIRE(rdata->type == dns_rdatatype_atma);
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REQUIRE(rdata->rdclass == dns_rdataclass_in);
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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 int
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casecompare_in_atma(ARGS_COMPARE) {
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return compare_in_atma(rdata1, rdata2);
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}
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#endif /* RDATA_IN_1_atma_22_C */
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