diff options
Diffstat (limited to 'lib/dns/rdata/generic/uri_256.c')
| -rw-r--r-- | lib/dns/rdata/generic/uri_256.c | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/lib/dns/rdata/generic/uri_256.c b/lib/dns/rdata/generic/uri_256.c new file mode 100644 index 0000000..4618823 --- /dev/null +++ b/lib/dns/rdata/generic/uri_256.c @@ -0,0 +1,319 @@ +/* + * 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. + */ + +#ifndef GENERIC_URI_256_C +#define GENERIC_URI_256_C 1 + +#define RRTYPE_URI_ATTRIBUTES (0) + +static isc_result_t +fromtext_uri(ARGS_FROMTEXT) { + isc_token_t token; + + REQUIRE(type == dns_rdatatype_uri); + + UNUSED(type); + UNUSED(rdclass); + UNUSED(origin); + UNUSED(options); + UNUSED(callbacks); + + /* + * Priority + */ + RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, + false)); + if (token.value.as_ulong > 0xffffU) { + RETTOK(ISC_R_RANGE); + } + RETERR(uint16_tobuffer(token.value.as_ulong, target)); + + /* + * Weight + */ + RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, + false)); + if (token.value.as_ulong > 0xffffU) { + RETTOK(ISC_R_RANGE); + } + RETERR(uint16_tobuffer(token.value.as_ulong, target)); + + /* + * Target URI + */ + RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring, + false)); + if (token.type != isc_tokentype_qstring) { + RETTOK(DNS_R_SYNTAX); + } + RETTOK(multitxt_fromtext(&token.value.as_textregion, target)); + return (ISC_R_SUCCESS); +} + +static isc_result_t +totext_uri(ARGS_TOTEXT) { + isc_region_t region; + unsigned short priority, weight; + char buf[sizeof("65000 ")]; + + UNUSED(tctx); + + REQUIRE(rdata->type == dns_rdatatype_uri); + REQUIRE(rdata->length != 0); + + dns_rdata_toregion(rdata, ®ion); + + /* + * Priority + */ + priority = uint16_fromregion(®ion); + isc_region_consume(®ion, 2); + snprintf(buf, sizeof(buf), "%u ", priority); + RETERR(str_totext(buf, target)); + + /* + * Weight + */ + weight = uint16_fromregion(®ion); + isc_region_consume(®ion, 2); + snprintf(buf, sizeof(buf), "%u ", weight); + RETERR(str_totext(buf, target)); + + /* + * Target URI + */ + RETERR(multitxt_totext(®ion, target)); + return (ISC_R_SUCCESS); +} + +static isc_result_t +fromwire_uri(ARGS_FROMWIRE) { + isc_region_t region; + + REQUIRE(type == dns_rdatatype_uri); + + UNUSED(type); + UNUSED(rdclass); + UNUSED(dctx); + UNUSED(options); + + /* + * Priority, weight + */ + isc_buffer_activeregion(source, ®ion); + if (region.length < 4) { + return (ISC_R_UNEXPECTEDEND); + } + + /* + * Priority, weight and target URI + */ + isc_buffer_forward(source, region.length); + return (mem_tobuffer(target, region.base, region.length)); +} + +static isc_result_t +towire_uri(ARGS_TOWIRE) { + isc_region_t region; + + REQUIRE(rdata->type == dns_rdatatype_uri); + REQUIRE(rdata->length != 0); + + UNUSED(cctx); + + dns_rdata_toregion(rdata, ®ion); + return (mem_tobuffer(target, region.base, region.length)); +} + +static int +compare_uri(ARGS_COMPARE) { + isc_region_t r1; + isc_region_t r2; + int order; + + REQUIRE(rdata1->type == rdata2->type); + REQUIRE(rdata1->rdclass == rdata2->rdclass); + REQUIRE(rdata1->type == dns_rdatatype_uri); + REQUIRE(rdata1->length != 0); + REQUIRE(rdata2->length != 0); + + dns_rdata_toregion(rdata1, &r1); + dns_rdata_toregion(rdata2, &r2); + + /* + * Priority + */ + order = memcmp(r1.base, r2.base, 2); + if (order != 0) { + return (order < 0 ? -1 : 1); + } + isc_region_consume(&r1, 2); + isc_region_consume(&r2, 2); + + /* + * Weight + */ + order = memcmp(r1.base, r2.base, 2); + if (order != 0) { + return (order < 0 ? -1 : 1); + } + isc_region_consume(&r1, 2); + isc_region_consume(&r2, 2); + + return (isc_region_compare(&r1, &r2)); +} + +static isc_result_t +fromstruct_uri(ARGS_FROMSTRUCT) { + dns_rdata_uri_t *uri = source; + + REQUIRE(type == dns_rdatatype_uri); + REQUIRE(uri != NULL); + REQUIRE(uri->common.rdtype == type); + REQUIRE(uri->common.rdclass == rdclass); + REQUIRE(uri->target != NULL && uri->tgt_len != 0); + + UNUSED(type); + UNUSED(rdclass); + + /* + * Priority + */ + RETERR(uint16_tobuffer(uri->priority, target)); + + /* + * Weight + */ + RETERR(uint16_tobuffer(uri->weight, target)); + + /* + * Target URI + */ + return (mem_tobuffer(target, uri->target, uri->tgt_len)); +} + +static isc_result_t +tostruct_uri(ARGS_TOSTRUCT) { + dns_rdata_uri_t *uri = target; + isc_region_t sr; + + REQUIRE(rdata->type == dns_rdatatype_uri); + REQUIRE(uri != NULL); + REQUIRE(rdata->length != 0); + + uri->common.rdclass = rdata->rdclass; + uri->common.rdtype = rdata->type; + ISC_LINK_INIT(&uri->common, link); + + dns_rdata_toregion(rdata, &sr); + + /* + * Priority + */ + if (sr.length < 2) { + return (ISC_R_UNEXPECTEDEND); + } + uri->priority = uint16_fromregion(&sr); + isc_region_consume(&sr, 2); + + /* + * Weight + */ + if (sr.length < 2) { + return (ISC_R_UNEXPECTEDEND); + } + uri->weight = uint16_fromregion(&sr); + isc_region_consume(&sr, 2); + + /* + * Target URI + */ + uri->tgt_len = sr.length; + uri->target = mem_maybedup(mctx, sr.base, sr.length); + if (uri->target == NULL) { + return (ISC_R_NOMEMORY); + } + + uri->mctx = mctx; + return (ISC_R_SUCCESS); +} + +static void +freestruct_uri(ARGS_FREESTRUCT) { + dns_rdata_uri_t *uri = (dns_rdata_uri_t *)source; + + REQUIRE(uri != NULL); + REQUIRE(uri->common.rdtype == dns_rdatatype_uri); + + if (uri->mctx == NULL) { + return; + } + + if (uri->target != NULL) { + isc_mem_free(uri->mctx, uri->target); + } + uri->mctx = NULL; +} + +static isc_result_t +additionaldata_uri(ARGS_ADDLDATA) { + REQUIRE(rdata->type == dns_rdatatype_uri); + + UNUSED(rdata); + UNUSED(owner); + UNUSED(add); + UNUSED(arg); + + return (ISC_R_SUCCESS); +} + +static isc_result_t +digest_uri(ARGS_DIGEST) { + isc_region_t r; + + REQUIRE(rdata->type == dns_rdatatype_uri); + + dns_rdata_toregion(rdata, &r); + + return ((digest)(arg, &r)); +} + +static bool +checkowner_uri(ARGS_CHECKOWNER) { + REQUIRE(type == dns_rdatatype_uri); + + UNUSED(name); + UNUSED(type); + UNUSED(rdclass); + UNUSED(wildcard); + + return (true); +} + +static bool +checknames_uri(ARGS_CHECKNAMES) { + REQUIRE(rdata->type == dns_rdatatype_uri); + + UNUSED(rdata); + UNUSED(owner); + UNUSED(bad); + + return (true); +} + +static int +casecompare_uri(ARGS_COMPARE) { + return (compare_uri(rdata1, rdata2)); +} + +#endif /* GENERIC_URI_256_C */ |