Adding upstream version 1:9.18.19.upstream/1%9.18.19upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 591 insertions, 0 deletions

diff --git a/lib/dns/rdata/generic/sig_24.c b/lib/dns/rdata/generic/sig_24.c
new file mode 100644
index 0000000..85075c3
--- /dev/null
+++ b/lib/dns/rdata/generic/sig_24.c
@@ -0,0 +1,591 @@
+/*
+ * 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.
+ */
+
+/* RFC2535 */
+
+#ifndef RDATA_GENERIC_SIG_24_C
+#define RDATA_GENERIC_SIG_24_C
+
+#define RRTYPE_SIG_ATTRIBUTES (0)
+
+static isc_result_t
+fromtext_sig(ARGS_FROMTEXT) {
+	isc_token_t token;
+	unsigned char c;
+	long i;
+	dns_rdatatype_t covered;
+	char *e;
+	isc_result_t result;
+	dns_name_t name;
+	isc_buffer_t buffer;
+	uint32_t time_signed, time_expire;
+
+	REQUIRE(type == dns_rdatatype_sig);
+
+	UNUSED(type);
+	UNUSED(rdclass);
+	UNUSED(callbacks);
+
+	/*
+	 * Type covered.
+	 */
+	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
+				      false));
+	result = dns_rdatatype_fromtext(&covered, &token.value.as_textregion);
+	if (result != ISC_R_SUCCESS && result != ISC_R_NOTIMPLEMENTED) {
+		i = strtol(DNS_AS_STR(token), &e, 10);
+		if (i < 0 || i > 65535) {
+			RETTOK(ISC_R_RANGE);
+		}
+		if (*e != 0) {
+			RETTOK(result);
+		}
+		covered = (dns_rdatatype_t)i;
+	}
+	RETERR(uint16_tobuffer(covered, target));
+
+	/*
+	 * Algorithm.
+	 */
+	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
+				      false));
+	RETTOK(dns_secalg_fromtext(&c, &token.value.as_textregion));
+	RETERR(mem_tobuffer(target, &c, 1));
+
+	/*
+	 * Labels.
+	 */
+	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
+				      false));
+	if (token.value.as_ulong > 0xffU) {
+		RETTOK(ISC_R_RANGE);
+	}
+	c = (unsigned char)token.value.as_ulong;
+	RETERR(mem_tobuffer(target, &c, 1));
+
+	/*
+	 * Original ttl.
+	 */
+	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
+				      false));
+	RETERR(uint32_tobuffer(token.value.as_ulong, target));
+
+	/*
+	 * Signature expiration.
+	 */
+	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
+				      false));
+	RETTOK(dns_time32_fromtext(DNS_AS_STR(token), &time_expire));
+	RETERR(uint32_tobuffer(time_expire, target));
+
+	/*
+	 * Time signed.
+	 */
+	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
+				      false));
+	RETTOK(dns_time32_fromtext(DNS_AS_STR(token), &time_signed));
+	RETERR(uint32_tobuffer(time_signed, target));
+
+	/*
+	 * Key footprint.
+	 */
+	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
+				      false));
+	RETERR(uint16_tobuffer(token.value.as_ulong, target));
+
+	/*
+	 * Signer.
+	 */
+	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));
+
+	/*
+	 * Sig.
+	 */
+	return (isc_base64_tobuffer(lexer, target, -2));
+}
+
+static isc_result_t
+totext_sig(ARGS_TOTEXT) {
+	isc_region_t sr;
+	char buf[sizeof("4294967295")];
+	dns_rdatatype_t covered;
+	unsigned long ttl;
+	unsigned long when;
+	unsigned long exp;
+	unsigned long foot;
+	dns_name_t name;
+	dns_name_t prefix;
+	bool sub;
+
+	REQUIRE(rdata->type == dns_rdatatype_sig);
+	REQUIRE(rdata->length != 0);
+
+	dns_rdata_toregion(rdata, &sr);
+
+	/*
+	 * Type covered.
+	 */
+	covered = uint16_fromregion(&sr);
+	isc_region_consume(&sr, 2);
+	/*
+	 * XXXAG We should have something like dns_rdatatype_isknown()
+	 * that does the right thing with type 0.
+	 */
+	if (dns_rdatatype_isknown(covered) && covered != 0) {
+		RETERR(dns_rdatatype_totext(covered, target));
+	} else {
+		snprintf(buf, sizeof(buf), "%u", covered);
+		RETERR(str_totext(buf, target));
+	}
+	RETERR(str_totext(" ", target));
+
+	/*
+	 * Algorithm.
+	 */
+	snprintf(buf, sizeof(buf), "%u", sr.base[0]);
+	isc_region_consume(&sr, 1);
+	RETERR(str_totext(buf, target));
+	RETERR(str_totext(" ", target));
+
+	/*
+	 * Labels.
+	 */
+	snprintf(buf, sizeof(buf), "%u", sr.base[0]);
+	isc_region_consume(&sr, 1);
+	RETERR(str_totext(buf, target));
+	RETERR(str_totext(" ", target));
+
+	/*
+	 * Ttl.
+	 */
+	ttl = uint32_fromregion(&sr);
+	isc_region_consume(&sr, 4);
+	snprintf(buf, sizeof(buf), "%lu", ttl);
+	RETERR(str_totext(buf, target));
+	RETERR(str_totext(" ", target));
+
+	/*
+	 * Sig exp.
+	 */
+	exp = uint32_fromregion(&sr);
+	isc_region_consume(&sr, 4);
+	RETERR(dns_time32_totext(exp, target));
+
+	if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) {
+		RETERR(str_totext(" (", target));
+	}
+	RETERR(str_totext(tctx->linebreak, target));
+
+	/*
+	 * Time signed.
+	 */
+	when = uint32_fromregion(&sr);
+	isc_region_consume(&sr, 4);
+	RETERR(dns_time32_totext(when, target));
+	RETERR(str_totext(" ", target));
+
+	/*
+	 * Footprint.
+	 */
+	foot = uint16_fromregion(&sr);
+	isc_region_consume(&sr, 2);
+	snprintf(buf, sizeof(buf), "%lu", foot);
+	RETERR(str_totext(buf, target));
+	RETERR(str_totext(" ", target));
+
+	/*
+	 * Signer.
+	 */
+	dns_name_init(&name, NULL);
+	dns_name_init(&prefix, NULL);
+	dns_name_fromregion(&name, &sr);
+	isc_region_consume(&sr, name_length(&name));
+	sub = name_prefix(&name, tctx->origin, &prefix);
+	RETERR(dns_name_totext(&prefix, sub, target));
+
+	/*
+	 * Sig.
+	 */
+	RETERR(str_totext(tctx->linebreak, target));
+	if (tctx->width == 0) { /* No splitting */
+		RETERR(isc_base64_totext(&sr, 60, "", target));
+	} else {
+		RETERR(isc_base64_totext(&sr, 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_sig(ARGS_FROMWIRE) {
+	isc_region_t sr;
+	dns_name_t name;
+
+	REQUIRE(type == dns_rdatatype_sig);
+
+	UNUSED(type);
+	UNUSED(rdclass);
+
+	dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
+
+	isc_buffer_activeregion(source, &sr);
+	/*
+	 * type covered: 2
+	 * algorithm: 1
+	 * labels: 1
+	 * original ttl: 4
+	 * signature expiration: 4
+	 * time signed: 4
+	 * key footprint: 2
+	 */
+	if (sr.length < 18) {
+		return (ISC_R_UNEXPECTEDEND);
+	}
+
+	isc_buffer_forward(source, 18);
+	RETERR(mem_tobuffer(target, sr.base, 18));
+
+	/*
+	 * Signer.
+	 */
+	dns_name_init(&name, NULL);
+	RETERR(dns_name_fromwire(&name, source, dctx, options, target));
+
+	/*
+	 * Sig.
+	 */
+	isc_buffer_activeregion(source, &sr);
+	if (sr.length == 0) {
+		return (ISC_R_UNEXPECTEDEND);
+	}
+	isc_buffer_forward(source, sr.length);
+	return (mem_tobuffer(target, sr.base, sr.length));
+}
+
+static isc_result_t
+towire_sig(ARGS_TOWIRE) {
+	isc_region_t sr;
+	dns_name_t name;
+	dns_offsets_t offsets;
+
+	REQUIRE(rdata->type == dns_rdatatype_sig);
+	REQUIRE(rdata->length != 0);
+
+	dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
+	dns_rdata_toregion(rdata, &sr);
+	/*
+	 * type covered: 2
+	 * algorithm: 1
+	 * labels: 1
+	 * original ttl: 4
+	 * signature expiration: 4
+	 * time signed: 4
+	 * key footprint: 2
+	 */
+	RETERR(mem_tobuffer(target, sr.base, 18));
+	isc_region_consume(&sr, 18);
+
+	/*
+	 * Signer.
+	 */
+	dns_name_init(&name, offsets);
+	dns_name_fromregion(&name, &sr);
+	isc_region_consume(&sr, name_length(&name));
+	RETERR(dns_name_towire(&name, cctx, target));
+
+	/*
+	 * Signature.
+	 */
+	return (mem_tobuffer(target, sr.base, sr.length));
+}
+
+static int
+compare_sig(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_sig);
+	REQUIRE(rdata1->length != 0);
+	REQUIRE(rdata2->length != 0);
+
+	dns_rdata_toregion(rdata1, &r1);
+	dns_rdata_toregion(rdata2, &r2);
+
+	INSIST(r1.length > 18);
+	INSIST(r2.length > 18);
+	r1.length = 18;
+	r2.length = 18;
+	order = isc_region_compare(&r1, &r2);
+	if (order != 0) {
+		return (order);
+	}
+
+	dns_name_init(&name1, NULL);
+	dns_name_init(&name2, NULL);
+	dns_rdata_toregion(rdata1, &r1);
+	dns_rdata_toregion(rdata2, &r2);
+	isc_region_consume(&r1, 18);
+	isc_region_consume(&r2, 18);
+	dns_name_fromregion(&name1, &r1);
+	dns_name_fromregion(&name2, &r2);
+	order = dns_name_rdatacompare(&name1, &name2);
+	if (order != 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_sig(ARGS_FROMSTRUCT) {
+	dns_rdata_sig_t *sig = source;
+
+	REQUIRE(type == dns_rdatatype_sig);
+	REQUIRE(sig != NULL);
+	REQUIRE(sig->common.rdtype == type);
+	REQUIRE(sig->common.rdclass == rdclass);
+	REQUIRE(sig->signature != NULL || sig->siglen == 0);
+
+	UNUSED(type);
+	UNUSED(rdclass);
+
+	/*
+	 * Type covered.
+	 */
+	RETERR(uint16_tobuffer(sig->covered, target));
+
+	/*
+	 * Algorithm.
+	 */
+	RETERR(uint8_tobuffer(sig->algorithm, target));
+
+	/*
+	 * Labels.
+	 */
+	RETERR(uint8_tobuffer(sig->labels, target));
+
+	/*
+	 * Original TTL.
+	 */
+	RETERR(uint32_tobuffer(sig->originalttl, target));
+
+	/*
+	 * Expire time.
+	 */
+	RETERR(uint32_tobuffer(sig->timeexpire, target));
+
+	/*
+	 * Time signed.
+	 */
+	RETERR(uint32_tobuffer(sig->timesigned, target));
+
+	/*
+	 * Key ID.
+	 */
+	RETERR(uint16_tobuffer(sig->keyid, target));
+
+	/*
+	 * Signer name.
+	 */
+	RETERR(name_tobuffer(&sig->signer, target));
+
+	/*
+	 * Signature.
+	 */
+	return (mem_tobuffer(target, sig->signature, sig->siglen));
+}
+
+static isc_result_t
+tostruct_sig(ARGS_TOSTRUCT) {
+	isc_region_t sr;
+	dns_rdata_sig_t *sig = target;
+	dns_name_t signer;
+
+	REQUIRE(rdata->type == dns_rdatatype_sig);
+	REQUIRE(sig != NULL);
+	REQUIRE(rdata->length != 0);
+
+	sig->common.rdclass = rdata->rdclass;
+	sig->common.rdtype = rdata->type;
+	ISC_LINK_INIT(&sig->common, link);
+
+	dns_rdata_toregion(rdata, &sr);
+
+	/*
+	 * Type covered.
+	 */
+	sig->covered = uint16_fromregion(&sr);
+	isc_region_consume(&sr, 2);
+
+	/*
+	 * Algorithm.
+	 */
+	sig->algorithm = uint8_fromregion(&sr);
+	isc_region_consume(&sr, 1);
+
+	/*
+	 * Labels.
+	 */
+	sig->labels = uint8_fromregion(&sr);
+	isc_region_consume(&sr, 1);
+
+	/*
+	 * Original TTL.
+	 */
+	sig->originalttl = uint32_fromregion(&sr);
+	isc_region_consume(&sr, 4);
+
+	/*
+	 * Expire time.
+	 */
+	sig->timeexpire = uint32_fromregion(&sr);
+	isc_region_consume(&sr, 4);
+
+	/*
+	 * Time signed.
+	 */
+	sig->timesigned = uint32_fromregion(&sr);
+	isc_region_consume(&sr, 4);
+
+	/*
+	 * Key ID.
+	 */
+	sig->keyid = uint16_fromregion(&sr);
+	isc_region_consume(&sr, 2);
+
+	dns_name_init(&signer, NULL);
+	dns_name_fromregion(&signer, &sr);
+	dns_name_init(&sig->signer, NULL);
+	name_duporclone(&signer, mctx, &sig->signer);
+	isc_region_consume(&sr, name_length(&sig->signer));
+
+	/*
+	 * Signature.
+	 */
+	sig->siglen = sr.length;
+	sig->signature = mem_maybedup(mctx, sr.base, sig->siglen);
+	if (sig->signature == NULL) {
+		goto cleanup;
+	}
+
+	sig->mctx = mctx;
+	return (ISC_R_SUCCESS);
+
+cleanup:
+	if (mctx != NULL) {
+		dns_name_free(&sig->signer, mctx);
+	}
+	return (ISC_R_NOMEMORY);
+}
+
+static void
+freestruct_sig(ARGS_FREESTRUCT) {
+	dns_rdata_sig_t *sig = (dns_rdata_sig_t *)source;
+
+	REQUIRE(sig != NULL);
+	REQUIRE(sig->common.rdtype == dns_rdatatype_sig);
+
+	if (sig->mctx == NULL) {
+		return;
+	}
+
+	dns_name_free(&sig->signer, sig->mctx);
+	if (sig->signature != NULL) {
+		isc_mem_free(sig->mctx, sig->signature);
+	}
+	sig->mctx = NULL;
+}
+
+static isc_result_t
+additionaldata_sig(ARGS_ADDLDATA) {
+	REQUIRE(rdata->type == dns_rdatatype_sig);
+
+	UNUSED(rdata);
+	UNUSED(owner);
+	UNUSED(add);
+	UNUSED(arg);
+
+	return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+digest_sig(ARGS_DIGEST) {
+	REQUIRE(rdata->type == dns_rdatatype_sig);
+
+	UNUSED(rdata);
+	UNUSED(digest);
+	UNUSED(arg);
+
+	return (ISC_R_NOTIMPLEMENTED);
+}
+
+static dns_rdatatype_t
+covers_sig(dns_rdata_t *rdata) {
+	dns_rdatatype_t type;
+	isc_region_t r;
+
+	REQUIRE(rdata->type == dns_rdatatype_sig);
+
+	dns_rdata_toregion(rdata, &r);
+	type = uint16_fromregion(&r);
+
+	return (type);
+}
+
+static bool
+checkowner_sig(ARGS_CHECKOWNER) {
+	REQUIRE(type == dns_rdatatype_sig);
+
+	UNUSED(name);
+	UNUSED(type);
+	UNUSED(rdclass);
+	UNUSED(wildcard);
+
+	return (true);
+}
+
+static bool
+checknames_sig(ARGS_CHECKNAMES) {
+	REQUIRE(rdata->type == dns_rdatatype_sig);
+
+	UNUSED(rdata);
+	UNUSED(owner);
+	UNUSED(bad);
+
+	return (true);
+}
+
+static int
+casecompare_sig(ARGS_COMPARE) {
+	return (compare_sig(rdata1, rdata2));
+}
+#endif /* RDATA_GENERIC_SIG_24_C */