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Diffstat (limited to '')
| -rw-r--r-- | lib/dns/rdata/generic/lp_107.c | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/lib/dns/rdata/generic/lp_107.c b/lib/dns/rdata/generic/lp_107.c new file mode 100644 index 0000000..c4342c0 --- /dev/null +++ b/lib/dns/rdata/generic/lp_107.c @@ -0,0 +1,278 @@ +/* + * 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 RDATA_GENERIC_LP_107_C +#define RDATA_GENERIC_LP_107_C + +#include <string.h> + +#include <isc/net.h> + +#define RRTYPE_LP_ATTRIBUTES (0) + +static isc_result_t +fromtext_lp(ARGS_FROMTEXT) { + isc_token_t token; + dns_name_t name; + isc_buffer_t buffer; + + REQUIRE(type == dns_rdatatype_lp); + + UNUSED(type); + UNUSED(rdclass); + UNUSED(callbacks); + + 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)); + + RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string, + false)); + + dns_name_init(&name, NULL); + buffer_fromregion(&buffer, &token.value.as_region); + if (origin == NULL) { + origin = dns_rootname; + } + return (dns_name_fromtext(&name, &buffer, origin, options, target)); +} + +static isc_result_t +totext_lp(ARGS_TOTEXT) { + isc_region_t region; + dns_name_t name; + dns_name_t prefix; + bool sub; + char buf[sizeof("64000")]; + unsigned short num; + + REQUIRE(rdata->type == dns_rdatatype_lp); + REQUIRE(rdata->length != 0); + + dns_name_init(&name, NULL); + dns_name_init(&prefix, NULL); + + dns_rdata_toregion(rdata, ®ion); + num = uint16_fromregion(®ion); + isc_region_consume(®ion, 2); + snprintf(buf, sizeof(buf), "%u", num); + RETERR(str_totext(buf, target)); + + RETERR(str_totext(" ", target)); + + dns_name_fromregion(&name, ®ion); + sub = name_prefix(&name, tctx->origin, &prefix); + return (dns_name_totext(&prefix, sub, target)); +} + +static isc_result_t +fromwire_lp(ARGS_FROMWIRE) { + dns_name_t name; + isc_region_t sregion; + + REQUIRE(type == dns_rdatatype_lp); + + UNUSED(type); + UNUSED(rdclass); + + dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14); + + dns_name_init(&name, NULL); + + isc_buffer_activeregion(source, &sregion); + if (sregion.length < 2) { + return (ISC_R_UNEXPECTEDEND); + } + RETERR(mem_tobuffer(target, sregion.base, 2)); + isc_buffer_forward(source, 2); + return (dns_name_fromwire(&name, source, dctx, options, target)); +} + +static isc_result_t +towire_lp(ARGS_TOWIRE) { + REQUIRE(rdata->type == dns_rdatatype_lp); + REQUIRE(rdata->length != 0); + + UNUSED(cctx); + + return (mem_tobuffer(target, rdata->data, rdata->length)); +} + +static int +compare_lp(ARGS_COMPARE) { + isc_region_t region1; + isc_region_t region2; + + REQUIRE(rdata1->type == rdata2->type); + REQUIRE(rdata1->rdclass == rdata2->rdclass); + REQUIRE(rdata1->type == dns_rdatatype_lp); + REQUIRE(rdata1->length != 0); + REQUIRE(rdata2->length != 0); + + dns_rdata_toregion(rdata1, ®ion1); + dns_rdata_toregion(rdata2, ®ion2); + + return (isc_region_compare(®ion1, ®ion2)); +} + +static isc_result_t +fromstruct_lp(ARGS_FROMSTRUCT) { + dns_rdata_lp_t *lp = source; + isc_region_t region; + + REQUIRE(type == dns_rdatatype_lp); + REQUIRE(lp != NULL); + REQUIRE(lp->common.rdtype == type); + REQUIRE(lp->common.rdclass == rdclass); + + UNUSED(type); + UNUSED(rdclass); + + RETERR(uint16_tobuffer(lp->pref, target)); + dns_name_toregion(&lp->lp, ®ion); + return (isc_buffer_copyregion(target, ®ion)); +} + +static isc_result_t +tostruct_lp(ARGS_TOSTRUCT) { + isc_region_t region; + dns_rdata_lp_t *lp = target; + dns_name_t name; + + REQUIRE(rdata->type == dns_rdatatype_lp); + REQUIRE(lp != NULL); + REQUIRE(rdata->length != 0); + + lp->common.rdclass = rdata->rdclass; + lp->common.rdtype = rdata->type; + ISC_LINK_INIT(&lp->common, link); + + dns_name_init(&name, NULL); + dns_rdata_toregion(rdata, ®ion); + lp->pref = uint16_fromregion(®ion); + isc_region_consume(®ion, 2); + dns_name_fromregion(&name, ®ion); + dns_name_init(&lp->lp, NULL); + name_duporclone(&name, mctx, &lp->lp); + lp->mctx = mctx; + return (ISC_R_SUCCESS); +} + +static void +freestruct_lp(ARGS_FREESTRUCT) { + dns_rdata_lp_t *lp = source; + + REQUIRE(lp != NULL); + REQUIRE(lp->common.rdtype == dns_rdatatype_lp); + + if (lp->mctx == NULL) { + return; + } + + dns_name_free(&lp->lp, lp->mctx); + lp->mctx = NULL; +} + +static isc_result_t +additionaldata_lp(ARGS_ADDLDATA) { + dns_name_t name; + dns_offsets_t offsets; + isc_region_t region; + isc_result_t result; + + REQUIRE(rdata->type == dns_rdatatype_lp); + + UNUSED(owner); + + dns_name_init(&name, offsets); + dns_rdata_toregion(rdata, ®ion); + isc_region_consume(®ion, 2); + dns_name_fromregion(&name, ®ion); + + result = (add)(arg, &name, dns_rdatatype_l32, NULL); + if (result != ISC_R_SUCCESS) { + return (result); + } + return ((add)(arg, &name, dns_rdatatype_l64, NULL)); +} + +static isc_result_t +digest_lp(ARGS_DIGEST) { + isc_region_t region; + + REQUIRE(rdata->type == dns_rdatatype_lp); + + dns_rdata_toregion(rdata, ®ion); + return ((digest)(arg, ®ion)); +} + +static bool +checkowner_lp(ARGS_CHECKOWNER) { + REQUIRE(type == dns_rdatatype_lp); + + UNUSED(type); + UNUSED(rdclass); + UNUSED(name); + UNUSED(wildcard); + + return (true); +} + +static bool +checknames_lp(ARGS_CHECKNAMES) { + REQUIRE(rdata->type == dns_rdatatype_lp); + + UNUSED(bad); + UNUSED(owner); + + return (true); +} + +static int +casecompare_lp(ARGS_COMPARE) { + dns_name_t name1; + dns_name_t name2; + isc_region_t region1; + isc_region_t region2; + int order; + + REQUIRE(rdata1->type == rdata2->type); + REQUIRE(rdata1->rdclass == rdata2->rdclass); + REQUIRE(rdata1->type == dns_rdatatype_lp); + REQUIRE(rdata1->length != 0); + REQUIRE(rdata2->length != 0); + + order = memcmp(rdata1->data, rdata2->data, 2); + if (order != 0) { + return (order < 0 ? -1 : 1); + } + + dns_name_init(&name1, NULL); + dns_name_init(&name2, NULL); + + dns_rdata_toregion(rdata1, ®ion1); + dns_rdata_toregion(rdata2, ®ion2); + + isc_region_consume(®ion1, 2); + isc_region_consume(®ion2, 2); + + dns_name_fromregion(&name1, ®ion1); + dns_name_fromregion(&name2, ®ion2); + + return (dns_name_rdatacompare(&name1, &name2)); +} + +#endif /* RDATA_GENERIC_LP_107_C */ |