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Diffstat (limited to 'lib/dns/rdata/generic/sig_24.c')
-rw-r--r--lib/dns/rdata/generic/sig_24.c575
1 files changed, 575 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..ca0ce4e
--- /dev/null
+++ b/lib/dns/rdata/generic/sig_24.c
@@ -0,0 +1,575 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * 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 http://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 inline 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, -1));
+}
+
+static inline 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 inline 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);
+ isc_buffer_forward(source, sr.length);
+ return (mem_tobuffer(target, sr.base, sr.length));
+}
+
+static inline 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 inline 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 inline isc_result_t
+fromstruct_sig(ARGS_FROMSTRUCT) {
+ dns_rdata_sig_t *sig = source;
+
+ REQUIRE(type == dns_rdatatype_sig);
+ REQUIRE(source != 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 inline 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(target != 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);
+ RETERR(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 inline void
+freestruct_sig(ARGS_FREESTRUCT) {
+ dns_rdata_sig_t *sig = (dns_rdata_sig_t *) source;
+
+ REQUIRE(source != 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 inline isc_result_t
+additionaldata_sig(ARGS_ADDLDATA) {
+ REQUIRE(rdata->type == dns_rdatatype_sig);
+
+ UNUSED(rdata);
+ UNUSED(add);
+ UNUSED(arg);
+
+ return (ISC_R_SUCCESS);
+}
+
+static inline isc_result_t
+digest_sig(ARGS_DIGEST) {
+
+ REQUIRE(rdata->type == dns_rdatatype_sig);
+
+ UNUSED(rdata);
+ UNUSED(digest);
+ UNUSED(arg);
+
+ return (ISC_R_NOTIMPLEMENTED);
+}
+
+static inline 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 inline bool
+checkowner_sig(ARGS_CHECKOWNER) {
+
+ REQUIRE(type == dns_rdatatype_sig);
+
+ UNUSED(name);
+ UNUSED(type);
+ UNUSED(rdclass);
+ UNUSED(wildcard);
+
+ return (true);
+}
+
+static inline bool
+checknames_sig(ARGS_CHECKNAMES) {
+
+ REQUIRE(rdata->type == dns_rdatatype_sig);
+
+ UNUSED(rdata);
+ UNUSED(owner);
+ UNUSED(bad);
+
+ return (true);
+}
+
+static inline int
+casecompare_sig(ARGS_COMPARE) {
+ return (compare_sig(rdata1, rdata2));
+}
+#endif /* RDATA_GENERIC_SIG_24_C */