diff options
Diffstat (limited to 'lib/dns/rdata/generic/tkey_249.c')
| -rw-r--r-- | lib/dns/rdata/generic/tkey_249.c | 581 |
1 files changed, 581 insertions, 0 deletions
diff --git a/lib/dns/rdata/generic/tkey_249.c b/lib/dns/rdata/generic/tkey_249.c new file mode 100644 index 0000000..3605a34 --- /dev/null +++ b/lib/dns/rdata/generic/tkey_249.c @@ -0,0 +1,581 @@ +/* + * 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. + */ + +/* draft-ietf-dnsext-tkey-01.txt */ + +#ifndef RDATA_GENERIC_TKEY_249_C +#define RDATA_GENERIC_TKEY_249_C + +#define RRTYPE_TKEY_ATTRIBUTES (DNS_RDATATYPEATTR_META) + +static isc_result_t +fromtext_tkey(ARGS_FROMTEXT) { + isc_token_t token; + dns_rcode_t rcode; + dns_name_t name; + isc_buffer_t buffer; + long i; + char *e; + + REQUIRE(type == dns_rdatatype_tkey); + + UNUSED(type); + UNUSED(rdclass); + UNUSED(callbacks); + + /* + * Algorithm. + */ + 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; + } + RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target)); + + /* + * Inception. + */ + RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, + false)); + RETERR(uint32_tobuffer(token.value.as_ulong, target)); + + /* + * Expiration. + */ + RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, + false)); + RETERR(uint32_tobuffer(token.value.as_ulong, target)); + + /* + * Mode. + */ + 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)); + + /* + * Error. + */ + RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string, + false)); + if (dns_tsigrcode_fromtext(&rcode, &token.value.as_textregion) != + ISC_R_SUCCESS) + { + i = strtol(DNS_AS_STR(token), &e, 10); + if (*e != 0) { + RETTOK(DNS_R_UNKNOWN); + } + if (i < 0 || i > 0xffff) { + RETTOK(ISC_R_RANGE); + } + rcode = (dns_rcode_t)i; + } + RETERR(uint16_tobuffer(rcode, target)); + + /* + * Key Size. + */ + 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)); + + /* + * Key Data. + */ + RETERR(isc_base64_tobuffer(lexer, target, (int)token.value.as_ulong)); + + /* + * Other Size. + */ + 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)); + + /* + * Other Data. + */ + return (isc_base64_tobuffer(lexer, target, (int)token.value.as_ulong)); +} + +static isc_result_t +totext_tkey(ARGS_TOTEXT) { + isc_region_t sr, dr; + char buf[sizeof("4294967295 ")]; + unsigned long n; + dns_name_t name; + dns_name_t prefix; + bool sub; + + REQUIRE(rdata->type == dns_rdatatype_tkey); + REQUIRE(rdata->length != 0); + + dns_rdata_toregion(rdata, &sr); + + /* + * Algorithm. + */ + dns_name_init(&name, NULL); + dns_name_init(&prefix, NULL); + dns_name_fromregion(&name, &sr); + sub = name_prefix(&name, tctx->origin, &prefix); + RETERR(dns_name_totext(&prefix, sub, target)); + RETERR(str_totext(" ", target)); + isc_region_consume(&sr, name_length(&name)); + + /* + * Inception. + */ + n = uint32_fromregion(&sr); + isc_region_consume(&sr, 4); + snprintf(buf, sizeof(buf), "%lu ", n); + RETERR(str_totext(buf, target)); + + /* + * Expiration. + */ + n = uint32_fromregion(&sr); + isc_region_consume(&sr, 4); + snprintf(buf, sizeof(buf), "%lu ", n); + RETERR(str_totext(buf, target)); + + /* + * Mode. + */ + n = uint16_fromregion(&sr); + isc_region_consume(&sr, 2); + snprintf(buf, sizeof(buf), "%lu ", n); + RETERR(str_totext(buf, target)); + + /* + * Error. + */ + n = uint16_fromregion(&sr); + isc_region_consume(&sr, 2); + if (dns_tsigrcode_totext((dns_rcode_t)n, target) == ISC_R_SUCCESS) { + RETERR(str_totext(" ", target)); + } else { + snprintf(buf, sizeof(buf), "%lu ", n); + RETERR(str_totext(buf, target)); + } + + /* + * Key Size. + */ + n = uint16_fromregion(&sr); + isc_region_consume(&sr, 2); + snprintf(buf, sizeof(buf), "%lu", n); + RETERR(str_totext(buf, target)); + + /* + * Key Data. + */ + REQUIRE(n <= sr.length); + dr = sr; + dr.length = n; + 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_base64_totext(&dr, 60, "", target)); + } else { + RETERR(isc_base64_totext(&dr, tctx->width - 2, tctx->linebreak, + target)); + } + if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) { + RETERR(str_totext(" ) ", target)); + } else { + RETERR(str_totext(" ", target)); + } + isc_region_consume(&sr, n); + + /* + * Other Size. + */ + n = uint16_fromregion(&sr); + isc_region_consume(&sr, 2); + snprintf(buf, sizeof(buf), "%lu", n); + RETERR(str_totext(buf, target)); + + /* + * Other Data. + */ + REQUIRE(n <= sr.length); + if (n != 0U) { + dr = sr; + dr.length = n; + 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_base64_totext(&dr, 60, "", target)); + } else { + RETERR(isc_base64_totext(&dr, 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 +fromwire_tkey(ARGS_FROMWIRE) { + isc_region_t sr; + unsigned long n; + dns_name_t name; + + REQUIRE(type == dns_rdatatype_tkey); + + UNUSED(type); + UNUSED(rdclass); + + dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE); + + /* + * Algorithm. + */ + dns_name_init(&name, NULL); + RETERR(dns_name_fromwire(&name, source, dctx, options, target)); + + /* + * Inception: 4 + * Expiration: 4 + * Mode: 2 + * Error: 2 + */ + isc_buffer_activeregion(source, &sr); + if (sr.length < 12) { + return (ISC_R_UNEXPECTEDEND); + } + RETERR(mem_tobuffer(target, sr.base, 12)); + isc_region_consume(&sr, 12); + isc_buffer_forward(source, 12); + + /* + * Key Length + Key Data. + */ + if (sr.length < 2) { + return (ISC_R_UNEXPECTEDEND); + } + n = uint16_fromregion(&sr); + if (sr.length < n + 2) { + return (ISC_R_UNEXPECTEDEND); + } + RETERR(mem_tobuffer(target, sr.base, n + 2)); + isc_region_consume(&sr, n + 2); + isc_buffer_forward(source, n + 2); + + /* + * Other Length + Other Data. + */ + if (sr.length < 2) { + return (ISC_R_UNEXPECTEDEND); + } + n = uint16_fromregion(&sr); + if (sr.length < n + 2) { + return (ISC_R_UNEXPECTEDEND); + } + isc_buffer_forward(source, n + 2); + return (mem_tobuffer(target, sr.base, n + 2)); +} + +static isc_result_t +towire_tkey(ARGS_TOWIRE) { + isc_region_t sr; + dns_name_t name; + dns_offsets_t offsets; + + REQUIRE(rdata->type == dns_rdatatype_tkey); + REQUIRE(rdata->length != 0); + + dns_compress_setmethods(cctx, DNS_COMPRESS_NONE); + /* + * Algorithm. + */ + dns_rdata_toregion(rdata, &sr); + dns_name_init(&name, offsets); + dns_name_fromregion(&name, &sr); + RETERR(dns_name_towire(&name, cctx, target)); + isc_region_consume(&sr, name_length(&name)); + + return (mem_tobuffer(target, sr.base, sr.length)); +} + +static int +compare_tkey(ARGS_COMPARE) { + isc_region_t r1; + isc_region_t r2; + dns_name_t name1; + dns_name_t name2; + int order; + + REQUIRE(rdata1->type == rdata2->type); + REQUIRE(rdata1->rdclass == rdata2->rdclass); + REQUIRE(rdata1->type == dns_rdatatype_tkey); + REQUIRE(rdata1->length != 0); + REQUIRE(rdata2->length != 0); + + /* + * Algorithm. + */ + dns_rdata_toregion(rdata1, &r1); + dns_rdata_toregion(rdata2, &r2); + dns_name_init(&name1, NULL); + dns_name_init(&name2, NULL); + dns_name_fromregion(&name1, &r1); + dns_name_fromregion(&name2, &r2); + if ((order = dns_name_rdatacompare(&name1, &name2)) != 0) { + return (order); + } + isc_region_consume(&r1, name_length(&name1)); + isc_region_consume(&r2, name_length(&name2)); + return (isc_region_compare(&r1, &r2)); +} + +static isc_result_t +fromstruct_tkey(ARGS_FROMSTRUCT) { + dns_rdata_tkey_t *tkey = source; + + REQUIRE(type == dns_rdatatype_tkey); + REQUIRE(tkey != NULL); + REQUIRE(tkey->common.rdtype == type); + REQUIRE(tkey->common.rdclass == rdclass); + + UNUSED(type); + UNUSED(rdclass); + + /* + * Algorithm Name. + */ + RETERR(name_tobuffer(&tkey->algorithm, target)); + + /* + * Inception: 32 bits. + */ + RETERR(uint32_tobuffer(tkey->inception, target)); + + /* + * Expire: 32 bits. + */ + RETERR(uint32_tobuffer(tkey->expire, target)); + + /* + * Mode: 16 bits. + */ + RETERR(uint16_tobuffer(tkey->mode, target)); + + /* + * Error: 16 bits. + */ + RETERR(uint16_tobuffer(tkey->error, target)); + + /* + * Key size: 16 bits. + */ + RETERR(uint16_tobuffer(tkey->keylen, target)); + + /* + * Key. + */ + RETERR(mem_tobuffer(target, tkey->key, tkey->keylen)); + + /* + * Other size: 16 bits. + */ + RETERR(uint16_tobuffer(tkey->otherlen, target)); + + /* + * Other data. + */ + return (mem_tobuffer(target, tkey->other, tkey->otherlen)); +} + +static isc_result_t +tostruct_tkey(ARGS_TOSTRUCT) { + dns_rdata_tkey_t *tkey = target; + dns_name_t alg; + isc_region_t sr; + + REQUIRE(rdata->type == dns_rdatatype_tkey); + REQUIRE(tkey != NULL); + REQUIRE(rdata->length != 0); + + tkey->common.rdclass = rdata->rdclass; + tkey->common.rdtype = rdata->type; + ISC_LINK_INIT(&tkey->common, link); + + dns_rdata_toregion(rdata, &sr); + + /* + * Algorithm Name. + */ + dns_name_init(&alg, NULL); + dns_name_fromregion(&alg, &sr); + dns_name_init(&tkey->algorithm, NULL); + name_duporclone(&alg, mctx, &tkey->algorithm); + isc_region_consume(&sr, name_length(&tkey->algorithm)); + + /* + * Inception. + */ + tkey->inception = uint32_fromregion(&sr); + isc_region_consume(&sr, 4); + + /* + * Expire. + */ + tkey->expire = uint32_fromregion(&sr); + isc_region_consume(&sr, 4); + + /* + * Mode. + */ + tkey->mode = uint16_fromregion(&sr); + isc_region_consume(&sr, 2); + + /* + * Error. + */ + tkey->error = uint16_fromregion(&sr); + isc_region_consume(&sr, 2); + + /* + * Key size. + */ + tkey->keylen = uint16_fromregion(&sr); + isc_region_consume(&sr, 2); + + /* + * Key. + */ + INSIST(tkey->keylen + 2U <= sr.length); + tkey->key = mem_maybedup(mctx, sr.base, tkey->keylen); + if (tkey->key == NULL) { + goto cleanup; + } + isc_region_consume(&sr, tkey->keylen); + + /* + * Other size. + */ + tkey->otherlen = uint16_fromregion(&sr); + isc_region_consume(&sr, 2); + + /* + * Other. + */ + INSIST(tkey->otherlen <= sr.length); + tkey->other = mem_maybedup(mctx, sr.base, tkey->otherlen); + if (tkey->other == NULL) { + goto cleanup; + } + + tkey->mctx = mctx; + return (ISC_R_SUCCESS); + +cleanup: + if (mctx != NULL) { + dns_name_free(&tkey->algorithm, mctx); + } + if (mctx != NULL && tkey->key != NULL) { + isc_mem_free(mctx, tkey->key); + } + return (ISC_R_NOMEMORY); +} + +static void +freestruct_tkey(ARGS_FREESTRUCT) { + dns_rdata_tkey_t *tkey = (dns_rdata_tkey_t *)source; + + REQUIRE(tkey != NULL); + + if (tkey->mctx == NULL) { + return; + } + + dns_name_free(&tkey->algorithm, tkey->mctx); + if (tkey->key != NULL) { + isc_mem_free(tkey->mctx, tkey->key); + } + if (tkey->other != NULL) { + isc_mem_free(tkey->mctx, tkey->other); + } + tkey->mctx = NULL; +} + +static isc_result_t +additionaldata_tkey(ARGS_ADDLDATA) { + REQUIRE(rdata->type == dns_rdatatype_tkey); + + UNUSED(rdata); + UNUSED(owner); + UNUSED(add); + UNUSED(arg); + + return (ISC_R_SUCCESS); +} + +static isc_result_t +digest_tkey(ARGS_DIGEST) { + UNUSED(rdata); + UNUSED(digest); + UNUSED(arg); + + REQUIRE(rdata->type == dns_rdatatype_tkey); + + return (ISC_R_NOTIMPLEMENTED); +} + +static bool +checkowner_tkey(ARGS_CHECKOWNER) { + REQUIRE(type == dns_rdatatype_tkey); + + UNUSED(name); + UNUSED(type); + UNUSED(rdclass); + UNUSED(wildcard); + + return (true); +} + +static bool +checknames_tkey(ARGS_CHECKNAMES) { + REQUIRE(rdata->type == dns_rdatatype_tkey); + + UNUSED(rdata); + UNUSED(owner); + UNUSED(bad); + + return (true); +} + +static int +casecompare_tkey(ARGS_COMPARE) { + return (compare_tkey(rdata1, rdata2)); +} +#endif /* RDATA_GENERIC_TKEY_249_C */ |