Adding upstream version 1:9.16.44.upstream/1%9.16.44upstream

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

1 files changed, 627 insertions, 0 deletions

diff --git a/lib/dns/rdata/generic/caa_257.c b/lib/dns/rdata/generic/caa_257.c
new file mode 100644
index 0000000..0e6170b
--- /dev/null
+++ b/lib/dns/rdata/generic/caa_257.c
@@ -0,0 +1,627 @@
+/*
+ * 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_CAA_257_C
+#define GENERIC_CAA_257_C 1
+
+#define RRTYPE_CAA_ATTRIBUTES (0)
+
+static unsigned char const alphanumeric[256] = {
+	/* 0x00-0x0f */ 0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0x10-0x1f */ 0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0x20-0x2f */ 0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0x30-0x3f */ 1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0x40-0x4f */ 0,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	/* 0x50-0x5f */ 1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0x60-0x6f */ 0,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	/* 0x70-0x7f */ 1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	1,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0x80-0x8f */ 0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0x90-0x9f */ 0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0xa0-0xaf */ 0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0xb0-0xbf */ 0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0xc0-0xcf */ 0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0xd0-0xdf */ 0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0xe0-0xef */ 0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* 0xf0-0xff */ 0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+};
+
+static isc_result_t
+fromtext_caa(ARGS_FROMTEXT) {
+	isc_token_t token;
+	isc_textregion_t tr;
+	uint8_t flags;
+	unsigned int i;
+
+	REQUIRE(type == dns_rdatatype_caa);
+
+	UNUSED(type);
+	UNUSED(rdclass);
+	UNUSED(origin);
+	UNUSED(options);
+	UNUSED(callbacks);
+
+	/* Flags. */
+	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
+				      false));
+	if (token.value.as_ulong > 255U) {
+		RETTOK(ISC_R_RANGE);
+	}
+	flags = (uint8_t)(token.value.as_ulong & 255U);
+	RETERR(uint8_tobuffer(flags, target));
+
+	/*
+	 * Tag
+	 */
+	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
+				      false));
+	tr = token.value.as_textregion;
+	for (i = 0; i < tr.length; i++) {
+		if (!alphanumeric[(unsigned char)tr.base[i]]) {
+			RETTOK(DNS_R_SYNTAX);
+		}
+	}
+	RETERR(uint8_tobuffer(tr.length, target));
+	RETERR(mem_tobuffer(target, tr.base, tr.length));
+
+	/*
+	 * Value
+	 */
+	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring,
+				      false));
+	if (token.type != isc_tokentype_qstring &&
+	    token.type != isc_tokentype_string)
+	{
+		RETERR(DNS_R_SYNTAX);
+	}
+	RETERR(multitxt_fromtext(&token.value.as_textregion, target));
+	return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+totext_caa(ARGS_TOTEXT) {
+	isc_region_t region;
+	uint8_t flags;
+	char buf[256];
+
+	UNUSED(tctx);
+
+	REQUIRE(rdata->type == dns_rdatatype_caa);
+	REQUIRE(rdata->length >= 3U);
+	REQUIRE(rdata->data != NULL);
+
+	dns_rdata_toregion(rdata, &region);
+
+	/*
+	 * Flags
+	 */
+	flags = uint8_consume_fromregion(&region);
+	snprintf(buf, sizeof(buf), "%u ", flags);
+	RETERR(str_totext(buf, target));
+
+	/*
+	 * Tag
+	 */
+	RETERR(txt_totext(&region, false, target));
+	RETERR(str_totext(" ", target));
+
+	/*
+	 * Value
+	 */
+	RETERR(multitxt_totext(&region, target));
+	return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+fromwire_caa(ARGS_FROMWIRE) {
+	isc_region_t sr;
+	unsigned int len, i;
+
+	REQUIRE(type == dns_rdatatype_caa);
+
+	UNUSED(type);
+	UNUSED(rdclass);
+	UNUSED(dctx);
+	UNUSED(options);
+
+	/*
+	 * Flags
+	 */
+	isc_buffer_activeregion(source, &sr);
+	if (sr.length < 2) {
+		return (ISC_R_UNEXPECTEDEND);
+	}
+
+	/*
+	 * Flags, tag length
+	 */
+	RETERR(mem_tobuffer(target, sr.base, 2));
+	len = sr.base[1];
+	isc_region_consume(&sr, 2);
+	isc_buffer_forward(source, 2);
+
+	/*
+	 * Zero length tag fields are illegal.
+	 */
+	if (sr.length < len || len == 0) {
+		RETERR(DNS_R_FORMERR);
+	}
+
+	/* Check the Tag's value */
+	for (i = 0; i < len; i++) {
+		if (!alphanumeric[sr.base[i]]) {
+			RETERR(DNS_R_FORMERR);
+			/*
+			 * Tag + Value
+			 */
+		}
+	}
+	/*
+	 * Tag + Value
+	 */
+	isc_buffer_forward(source, sr.length);
+	return (mem_tobuffer(target, sr.base, sr.length));
+}
+
+static isc_result_t
+towire_caa(ARGS_TOWIRE) {
+	isc_region_t region;
+
+	REQUIRE(rdata->type == dns_rdatatype_caa);
+	REQUIRE(rdata->length >= 3U);
+	REQUIRE(rdata->data != NULL);
+
+	UNUSED(cctx);
+
+	dns_rdata_toregion(rdata, &region);
+	return (mem_tobuffer(target, region.base, region.length));
+}
+
+static int
+compare_caa(ARGS_COMPARE) {
+	isc_region_t r1, r2;
+
+	REQUIRE(rdata1->type == rdata2->type);
+	REQUIRE(rdata1->rdclass == rdata2->rdclass);
+	REQUIRE(rdata1->type == dns_rdatatype_caa);
+	REQUIRE(rdata1->length >= 3U);
+	REQUIRE(rdata2->length >= 3U);
+	REQUIRE(rdata1->data != NULL);
+	REQUIRE(rdata2->data != NULL);
+
+	dns_rdata_toregion(rdata1, &r1);
+	dns_rdata_toregion(rdata2, &r2);
+	return (isc_region_compare(&r1, &r2));
+}
+
+static isc_result_t
+fromstruct_caa(ARGS_FROMSTRUCT) {
+	dns_rdata_caa_t *caa = source;
+	isc_region_t region;
+	unsigned int i;
+
+	REQUIRE(type == dns_rdatatype_caa);
+	REQUIRE(caa != NULL);
+	REQUIRE(caa->common.rdtype == type);
+	REQUIRE(caa->common.rdclass == rdclass);
+	REQUIRE(caa->tag != NULL && caa->tag_len != 0);
+	REQUIRE(caa->value != NULL);
+
+	UNUSED(type);
+	UNUSED(rdclass);
+
+	/*
+	 * Flags
+	 */
+	RETERR(uint8_tobuffer(caa->flags, target));
+
+	/*
+	 * Tag length
+	 */
+	RETERR(uint8_tobuffer(caa->tag_len, target));
+
+	/*
+	 * Tag
+	 */
+	region.base = caa->tag;
+	region.length = caa->tag_len;
+	for (i = 0; i < region.length; i++) {
+		if (!alphanumeric[region.base[i]]) {
+			RETERR(DNS_R_SYNTAX);
+		}
+	}
+	RETERR(isc_buffer_copyregion(target, &region));
+
+	/*
+	 * Value
+	 */
+	region.base = caa->value;
+	region.length = caa->value_len;
+	return (isc_buffer_copyregion(target, &region));
+}
+
+static isc_result_t
+tostruct_caa(ARGS_TOSTRUCT) {
+	dns_rdata_caa_t *caa = target;
+	isc_region_t sr;
+
+	REQUIRE(rdata->type == dns_rdatatype_caa);
+	REQUIRE(caa != NULL);
+	REQUIRE(rdata->length >= 3U);
+	REQUIRE(rdata->data != NULL);
+
+	caa->common.rdclass = rdata->rdclass;
+	caa->common.rdtype = rdata->type;
+	ISC_LINK_INIT(&caa->common, link);
+
+	dns_rdata_toregion(rdata, &sr);
+
+	/*
+	 * Flags
+	 */
+	if (sr.length < 1) {
+		return (ISC_R_UNEXPECTEDEND);
+	}
+	caa->flags = uint8_fromregion(&sr);
+	isc_region_consume(&sr, 1);
+
+	/*
+	 * Tag length
+	 */
+	if (sr.length < 1) {
+		return (ISC_R_UNEXPECTEDEND);
+	}
+	caa->tag_len = uint8_fromregion(&sr);
+	isc_region_consume(&sr, 1);
+
+	/*
+	 * Tag
+	 */
+	if (sr.length < caa->tag_len) {
+		return (ISC_R_UNEXPECTEDEND);
+	}
+	caa->tag = mem_maybedup(mctx, sr.base, caa->tag_len);
+	if (caa->tag == NULL) {
+		return (ISC_R_NOMEMORY);
+	}
+	isc_region_consume(&sr, caa->tag_len);
+
+	/*
+	 * Value
+	 */
+	caa->value_len = sr.length;
+	caa->value = mem_maybedup(mctx, sr.base, sr.length);
+	if (caa->value == NULL) {
+		return (ISC_R_NOMEMORY);
+	}
+
+	caa->mctx = mctx;
+	return (ISC_R_SUCCESS);
+}
+
+static void
+freestruct_caa(ARGS_FREESTRUCT) {
+	dns_rdata_caa_t *caa = (dns_rdata_caa_t *)source;
+
+	REQUIRE(caa != NULL);
+	REQUIRE(caa->common.rdtype == dns_rdatatype_caa);
+
+	if (caa->mctx == NULL) {
+		return;
+	}
+
+	if (caa->tag != NULL) {
+		isc_mem_free(caa->mctx, caa->tag);
+	}
+	if (caa->value != NULL) {
+		isc_mem_free(caa->mctx, caa->value);
+	}
+	caa->mctx = NULL;
+}
+
+static isc_result_t
+additionaldata_caa(ARGS_ADDLDATA) {
+	REQUIRE(rdata->type == dns_rdatatype_caa);
+	REQUIRE(rdata->data != NULL);
+	REQUIRE(rdata->length >= 3U);
+
+	UNUSED(rdata);
+	UNUSED(add);
+	UNUSED(arg);
+
+	return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+digest_caa(ARGS_DIGEST) {
+	isc_region_t r;
+
+	REQUIRE(rdata->type == dns_rdatatype_caa);
+	REQUIRE(rdata->data != NULL);
+	REQUIRE(rdata->length >= 3U);
+
+	dns_rdata_toregion(rdata, &r);
+
+	return ((digest)(arg, &r));
+}
+
+static bool
+checkowner_caa(ARGS_CHECKOWNER) {
+	REQUIRE(type == dns_rdatatype_caa);
+
+	UNUSED(name);
+	UNUSED(type);
+	UNUSED(rdclass);
+	UNUSED(wildcard);
+
+	return (true);
+}
+
+static bool
+checknames_caa(ARGS_CHECKNAMES) {
+	REQUIRE(rdata->type == dns_rdatatype_caa);
+	REQUIRE(rdata->data != NULL);
+	REQUIRE(rdata->length >= 3U);
+
+	UNUSED(rdata);
+	UNUSED(owner);
+	UNUSED(bad);
+
+	return (true);
+}
+
+static int
+casecompare_caa(ARGS_COMPARE) {
+	return (compare_caa(rdata1, rdata2));
+}
+
+#endif /* GENERIC_CAA_257_C */