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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 07:24:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 07:24:22 +0000
commit45d6379135504814ab723b57f0eb8be23393a51d (patch)
treed4f2ec4acca824a8446387a758b0ce4238a4dffa /lib/dns/rdata/generic/soa_6.c
parentInitial commit. (diff)
downloadbind9-upstream/1%9.16.44.tar.xz
bind9-upstream/1%9.16.44.zip
Adding upstream version 1:9.16.44.upstream/1%9.16.44upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/dns/rdata/generic/soa_6.c')
-rw-r--r--lib/dns/rdata/generic/soa_6.c452
1 files changed, 452 insertions, 0 deletions
diff --git a/lib/dns/rdata/generic/soa_6.c b/lib/dns/rdata/generic/soa_6.c
new file mode 100644
index 0000000..70c9cd3
--- /dev/null
+++ b/lib/dns/rdata/generic/soa_6.c
@@ -0,0 +1,452 @@
+/*
+ * 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_SOA_6_C
+#define RDATA_GENERIC_SOA_6_C
+
+#define RRTYPE_SOA_ATTRIBUTES (DNS_RDATATYPEATTR_SINGLETON)
+
+static isc_result_t
+fromtext_soa(ARGS_FROMTEXT) {
+ isc_token_t token;
+ dns_name_t name;
+ isc_buffer_t buffer;
+ int i;
+ uint32_t n;
+ bool ok;
+
+ REQUIRE(type == dns_rdatatype_soa);
+
+ UNUSED(type);
+ UNUSED(rdclass);
+ UNUSED(callbacks);
+
+ if (origin == NULL) {
+ origin = dns_rootname;
+ }
+
+ for (i = 0; i < 2; i++) {
+ RETERR(isc_lex_getmastertoken(lexer, &token,
+ isc_tokentype_string, false));
+
+ dns_name_init(&name, NULL);
+ buffer_fromregion(&buffer, &token.value.as_region);
+ RETTOK(dns_name_fromtext(&name, &buffer, origin, options,
+ target));
+ ok = true;
+ if ((options & DNS_RDATA_CHECKNAMES) != 0) {
+ switch (i) {
+ case 0:
+ ok = dns_name_ishostname(&name, false);
+ break;
+ case 1:
+ ok = dns_name_ismailbox(&name);
+ break;
+ }
+ }
+ if (!ok && (options & DNS_RDATA_CHECKNAMESFAIL) != 0) {
+ RETTOK(DNS_R_BADNAME);
+ }
+ if (!ok && callbacks != NULL) {
+ warn_badname(&name, lexer, callbacks);
+ }
+ }
+
+ RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
+ false));
+ RETERR(uint32_tobuffer(token.value.as_ulong, target));
+
+ for (i = 0; i < 4; i++) {
+ RETERR(isc_lex_getmastertoken(lexer, &token,
+ isc_tokentype_string, false));
+ RETTOK(dns_counter_fromtext(&token.value.as_textregion, &n));
+ RETERR(uint32_tobuffer(n, target));
+ }
+
+ return (ISC_R_SUCCESS);
+}
+
+static const char *soa_fieldnames[5] = { "serial", "refresh", "retry", "expire",
+ "minimum" };
+
+static isc_result_t
+totext_soa(ARGS_TOTEXT) {
+ isc_region_t dregion;
+ dns_name_t mname;
+ dns_name_t rname;
+ dns_name_t prefix;
+ bool sub;
+ int i;
+ bool multiline;
+ bool comm;
+
+ REQUIRE(rdata->type == dns_rdatatype_soa);
+ REQUIRE(rdata->length != 0);
+
+ multiline = ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0);
+ if (multiline) {
+ comm = ((tctx->flags & DNS_STYLEFLAG_RRCOMMENT) != 0);
+ } else {
+ comm = false;
+ }
+
+ dns_name_init(&mname, NULL);
+ dns_name_init(&rname, NULL);
+ dns_name_init(&prefix, NULL);
+
+ dns_rdata_toregion(rdata, &dregion);
+
+ dns_name_fromregion(&mname, &dregion);
+ isc_region_consume(&dregion, name_length(&mname));
+
+ dns_name_fromregion(&rname, &dregion);
+ isc_region_consume(&dregion, name_length(&rname));
+
+ sub = name_prefix(&mname, tctx->origin, &prefix);
+ RETERR(dns_name_totext(&prefix, sub, target));
+
+ RETERR(str_totext(" ", target));
+
+ sub = name_prefix(&rname, tctx->origin, &prefix);
+ RETERR(dns_name_totext(&prefix, sub, target));
+
+ if (multiline) {
+ RETERR(str_totext(" (", target));
+ }
+ RETERR(str_totext(tctx->linebreak, target));
+
+ for (i = 0; i < 5; i++) {
+ char buf[sizeof("0123456789 ; ")];
+ unsigned long num;
+ num = uint32_fromregion(&dregion);
+ isc_region_consume(&dregion, 4);
+ snprintf(buf, sizeof(buf), comm ? "%-10lu ; " : "%lu", num);
+ RETERR(str_totext(buf, target));
+ if (comm) {
+ RETERR(str_totext(soa_fieldnames[i], target));
+ /* Print times in week/day/hour/minute/second form */
+ if (i >= 1) {
+ RETERR(str_totext(" (", target));
+ RETERR(dns_ttl_totext(num, true, true, target));
+ RETERR(str_totext(")", target));
+ }
+ RETERR(str_totext(tctx->linebreak, target));
+ } else if (i < 4) {
+ RETERR(str_totext(tctx->linebreak, target));
+ }
+ }
+
+ if (multiline) {
+ RETERR(str_totext(")", target));
+ }
+
+ return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+fromwire_soa(ARGS_FROMWIRE) {
+ dns_name_t mname;
+ dns_name_t rname;
+ isc_region_t sregion;
+ isc_region_t tregion;
+
+ REQUIRE(type == dns_rdatatype_soa);
+
+ UNUSED(type);
+ UNUSED(rdclass);
+
+ dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
+
+ dns_name_init(&mname, NULL);
+ dns_name_init(&rname, NULL);
+
+ RETERR(dns_name_fromwire(&mname, source, dctx, options, target));
+ RETERR(dns_name_fromwire(&rname, source, dctx, options, target));
+
+ isc_buffer_activeregion(source, &sregion);
+ isc_buffer_availableregion(target, &tregion);
+
+ if (sregion.length < 20) {
+ return (ISC_R_UNEXPECTEDEND);
+ }
+ if (tregion.length < 20) {
+ return (ISC_R_NOSPACE);
+ }
+
+ memmove(tregion.base, sregion.base, 20);
+ isc_buffer_forward(source, 20);
+ isc_buffer_add(target, 20);
+
+ return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+towire_soa(ARGS_TOWIRE) {
+ isc_region_t sregion;
+ isc_region_t tregion;
+ dns_name_t mname;
+ dns_name_t rname;
+ dns_offsets_t moffsets;
+ dns_offsets_t roffsets;
+
+ REQUIRE(rdata->type == dns_rdatatype_soa);
+ REQUIRE(rdata->length != 0);
+
+ dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
+
+ dns_name_init(&mname, moffsets);
+ dns_name_init(&rname, roffsets);
+
+ dns_rdata_toregion(rdata, &sregion);
+
+ dns_name_fromregion(&mname, &sregion);
+ isc_region_consume(&sregion, name_length(&mname));
+ RETERR(dns_name_towire(&mname, cctx, target));
+
+ dns_name_fromregion(&rname, &sregion);
+ isc_region_consume(&sregion, name_length(&rname));
+ RETERR(dns_name_towire(&rname, cctx, target));
+
+ isc_buffer_availableregion(target, &tregion);
+ if (tregion.length < 20) {
+ return (ISC_R_NOSPACE);
+ }
+
+ memmove(tregion.base, sregion.base, 20);
+ isc_buffer_add(target, 20);
+ return (ISC_R_SUCCESS);
+}
+
+static int
+compare_soa(ARGS_COMPARE) {
+ isc_region_t region1;
+ isc_region_t region2;
+ 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_soa);
+ REQUIRE(rdata1->length != 0);
+ REQUIRE(rdata2->length != 0);
+
+ dns_name_init(&name1, NULL);
+ dns_name_init(&name2, NULL);
+
+ dns_rdata_toregion(rdata1, &region1);
+ dns_rdata_toregion(rdata2, &region2);
+
+ dns_name_fromregion(&name1, &region1);
+ dns_name_fromregion(&name2, &region2);
+
+ order = dns_name_rdatacompare(&name1, &name2);
+ if (order != 0) {
+ return (order);
+ }
+
+ isc_region_consume(&region1, name_length(&name1));
+ isc_region_consume(&region2, name_length(&name2));
+
+ dns_name_init(&name1, NULL);
+ dns_name_init(&name2, NULL);
+
+ dns_name_fromregion(&name1, &region1);
+ dns_name_fromregion(&name2, &region2);
+
+ order = dns_name_rdatacompare(&name1, &name2);
+ if (order != 0) {
+ return (order);
+ }
+
+ isc_region_consume(&region1, name_length(&name1));
+ isc_region_consume(&region2, name_length(&name2));
+
+ return (isc_region_compare(&region1, &region2));
+}
+
+static isc_result_t
+fromstruct_soa(ARGS_FROMSTRUCT) {
+ dns_rdata_soa_t *soa = source;
+ isc_region_t region;
+
+ REQUIRE(type == dns_rdatatype_soa);
+ REQUIRE(soa != NULL);
+ REQUIRE(soa->common.rdtype == type);
+ REQUIRE(soa->common.rdclass == rdclass);
+
+ UNUSED(type);
+ UNUSED(rdclass);
+
+ dns_name_toregion(&soa->origin, &region);
+ RETERR(isc_buffer_copyregion(target, &region));
+ dns_name_toregion(&soa->contact, &region);
+ RETERR(isc_buffer_copyregion(target, &region));
+ RETERR(uint32_tobuffer(soa->serial, target));
+ RETERR(uint32_tobuffer(soa->refresh, target));
+ RETERR(uint32_tobuffer(soa->retry, target));
+ RETERR(uint32_tobuffer(soa->expire, target));
+ return (uint32_tobuffer(soa->minimum, target));
+}
+
+static isc_result_t
+tostruct_soa(ARGS_TOSTRUCT) {
+ isc_region_t region;
+ dns_rdata_soa_t *soa = target;
+ dns_name_t name;
+ isc_result_t result;
+
+ REQUIRE(rdata->type == dns_rdatatype_soa);
+ REQUIRE(soa != NULL);
+ REQUIRE(rdata->length != 0);
+
+ soa->common.rdclass = rdata->rdclass;
+ soa->common.rdtype = rdata->type;
+ ISC_LINK_INIT(&soa->common, link);
+
+ dns_rdata_toregion(rdata, &region);
+
+ dns_name_init(&name, NULL);
+ dns_name_fromregion(&name, &region);
+ isc_region_consume(&region, name_length(&name));
+ dns_name_init(&soa->origin, NULL);
+ RETERR(name_duporclone(&name, mctx, &soa->origin));
+
+ dns_name_fromregion(&name, &region);
+ isc_region_consume(&region, name_length(&name));
+ dns_name_init(&soa->contact, NULL);
+ result = name_duporclone(&name, mctx, &soa->contact);
+ if (result != ISC_R_SUCCESS) {
+ goto cleanup;
+ }
+
+ soa->serial = uint32_fromregion(&region);
+ isc_region_consume(&region, 4);
+
+ soa->refresh = uint32_fromregion(&region);
+ isc_region_consume(&region, 4);
+
+ soa->retry = uint32_fromregion(&region);
+ isc_region_consume(&region, 4);
+
+ soa->expire = uint32_fromregion(&region);
+ isc_region_consume(&region, 4);
+
+ soa->minimum = uint32_fromregion(&region);
+
+ soa->mctx = mctx;
+ return (ISC_R_SUCCESS);
+
+cleanup:
+ if (mctx != NULL) {
+ dns_name_free(&soa->origin, mctx);
+ }
+ return (ISC_R_NOMEMORY);
+}
+
+static void
+freestruct_soa(ARGS_FREESTRUCT) {
+ dns_rdata_soa_t *soa = source;
+
+ REQUIRE(soa != NULL);
+ REQUIRE(soa->common.rdtype == dns_rdatatype_soa);
+
+ if (soa->mctx == NULL) {
+ return;
+ }
+
+ dns_name_free(&soa->origin, soa->mctx);
+ dns_name_free(&soa->contact, soa->mctx);
+ soa->mctx = NULL;
+}
+
+static isc_result_t
+additionaldata_soa(ARGS_ADDLDATA) {
+ UNUSED(rdata);
+ UNUSED(add);
+ UNUSED(arg);
+
+ REQUIRE(rdata->type == dns_rdatatype_soa);
+
+ return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+digest_soa(ARGS_DIGEST) {
+ isc_region_t r;
+ dns_name_t name;
+
+ REQUIRE(rdata->type == dns_rdatatype_soa);
+
+ dns_rdata_toregion(rdata, &r);
+
+ dns_name_init(&name, NULL);
+ dns_name_fromregion(&name, &r);
+ RETERR(dns_name_digest(&name, digest, arg));
+ isc_region_consume(&r, name_length(&name));
+
+ dns_name_init(&name, NULL);
+ dns_name_fromregion(&name, &r);
+ RETERR(dns_name_digest(&name, digest, arg));
+ isc_region_consume(&r, name_length(&name));
+
+ return ((digest)(arg, &r));
+}
+
+static bool
+checkowner_soa(ARGS_CHECKOWNER) {
+ REQUIRE(type == dns_rdatatype_soa);
+
+ UNUSED(name);
+ UNUSED(type);
+ UNUSED(rdclass);
+ UNUSED(wildcard);
+
+ return (true);
+}
+
+static bool
+checknames_soa(ARGS_CHECKNAMES) {
+ isc_region_t region;
+ dns_name_t name;
+
+ REQUIRE(rdata->type == dns_rdatatype_soa);
+
+ UNUSED(owner);
+
+ dns_rdata_toregion(rdata, &region);
+ dns_name_init(&name, NULL);
+ dns_name_fromregion(&name, &region);
+ if (!dns_name_ishostname(&name, false)) {
+ if (bad != NULL) {
+ dns_name_clone(&name, bad);
+ }
+ return (false);
+ }
+ isc_region_consume(&region, name_length(&name));
+ dns_name_fromregion(&name, &region);
+ if (!dns_name_ismailbox(&name)) {
+ if (bad != NULL) {
+ dns_name_clone(&name, bad);
+ }
+ return (false);
+ }
+ return (true);
+}
+
+static int
+casecompare_soa(ARGS_COMPARE) {
+ return (compare_soa(rdata1, rdata2));
+}
+
+#endif /* RDATA_GENERIC_SOA_6_C */