3056. [func] Added support for URI resource record. [RT #23386]

diff --git a/lib/dns/rdata/generic/uri_256.c b/lib/dns/rdata/generic/uri_256.c
new file mode 100644 (file)
index 0000000..0e8af9e
--- /dev/null
+++ b/lib/dns/rdata/generic/uri_256.c
@@ -0,0 +1,326 @@
+/*
+ * Copyright (C) 2011-2013  Internet Systems Consortium, Inc. ("ISC")
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: uri_256.c,v 1.2 2011/03/03 14:10:27 fdupont Exp $ */
+
+#ifndef GENERIC_URI_256_C
+#define GENERIC_URI_256_C 1
+
+#define RRTYPE_URI_ATTRIBUTES (0)
+
+static inline isc_result_t
+fromtext_uri(ARGS_FROMTEXT) {
+       isc_token_t token;
+
+       REQUIRE(type == 256);
+
+       UNUSED(type);
+       UNUSED(rdclass);
+       UNUSED(origin);
+       UNUSED(options);
+       UNUSED(callbacks);
+
+       /*
+        * Priority
+        */
+       RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
+                                     ISC_FALSE));
+       if (token.value.as_ulong > 0xffffU)
+               RETTOK(ISC_R_RANGE);
+       RETERR(uint16_tobuffer(token.value.as_ulong, target));
+
+       /*
+        * Weight
+        */
+       RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
+                                     ISC_FALSE));
+       if (token.value.as_ulong > 0xffffU)
+               RETTOK(ISC_R_RANGE);
+       RETERR(uint16_tobuffer(token.value.as_ulong, target));
+
+       /*
+        * Target URI
+        */
+       RETERR(isc_lex_getmastertoken(lexer, &token,
+                                     isc_tokentype_qstring, ISC_FALSE));
+       if (token.type != isc_tokentype_qstring)
+               RETTOK(DNS_R_SYNTAX);
+       RETTOK(multitxt_fromtext(&token.value.as_textregion, target));
+       return (ISC_R_SUCCESS);
+}
+
+static inline isc_result_t
+totext_uri(ARGS_TOTEXT) {
+       isc_region_t region;
+       unsigned short priority, weight;
+       char buf[sizeof("65000 ")];
+
+       UNUSED(tctx);
+
+       REQUIRE(rdata->type == 256);
+       REQUIRE(rdata->length != 0);
+
+       dns_rdata_toregion(rdata, &region);
+
+       /*
+        * Priority
+        */
+       priority = uint16_fromregion(&region);
+       isc_region_consume(&region, 2);
+       sprintf(buf, "%u ", priority);
+       RETERR(str_totext(buf, target));
+
+       /*
+        * Weight
+        */
+       weight = uint16_fromregion(&region);
+       isc_region_consume(&region, 2);
+       sprintf(buf, "%u ", weight);
+       RETERR(str_totext(buf, target));
+
+       /*
+        * Target URI
+        */
+       RETERR(multitxt_totext(&region, target));
+       return (ISC_R_SUCCESS);
+}
+
+static inline isc_result_t
+fromwire_uri(ARGS_FROMWIRE) {
+       isc_region_t region;
+
+       REQUIRE(type == 256);
+
+       UNUSED(type);
+       UNUSED(rdclass);
+       UNUSED(dctx);
+       UNUSED(options);
+
+       /*
+        * Priority, weight
+        */
+       isc_buffer_activeregion(source, &region);
+       if (region.length < 4)
+               return (ISC_R_UNEXPECTEDEND);
+       RETERR(mem_tobuffer(target, region.base, 4));
+       isc_buffer_forward(source, 4);
+
+       /*
+        * Target URI
+        */
+       RETERR(multitxt_fromwire(source, target));
+
+       return (ISC_R_SUCCESS);
+}
+
+static inline isc_result_t
+towire_uri(ARGS_TOWIRE) {
+       isc_region_t region;
+
+       REQUIRE(rdata->type == 256);
+       REQUIRE(rdata->length != 0);
+
+       UNUSED(cctx);
+
+       dns_rdata_toregion(rdata, &region);
+       return (mem_tobuffer(target, region.base, region.length));
+}
+
+static inline int
+compare_uri(ARGS_COMPARE) {
+       isc_region_t r1;
+       isc_region_t r2;
+       int order;
+
+       REQUIRE(rdata1->type == rdata2->type);
+       REQUIRE(rdata1->rdclass == rdata2->rdclass);
+       REQUIRE(rdata1->type == 256);
+       REQUIRE(rdata1->length != 0);
+       REQUIRE(rdata2->length != 0);
+
+       dns_rdata_toregion(rdata1, &r1);
+       dns_rdata_toregion(rdata2, &r2);
+
+       /*
+        * Priority
+        */
+       order = memcmp(r1.base, r2.base, 2);
+       if (order != 0)
+               return (order < 0 ? -1 : 1);
+       isc_region_consume(&r1, 2);
+       isc_region_consume(&r2, 2);
+
+       /*
+        * Weight
+        */
+       order = memcmp(r1.base, r2.base, 2);
+       if (order != 0)
+               return (order < 0 ? -1 : 1);
+       isc_region_consume(&r1, 2);
+       isc_region_consume(&r2, 2);
+
+       return (isc_region_compare(&r1, &r2));
+}
+
+static inline isc_result_t
+fromstruct_uri(ARGS_FROMSTRUCT) {
+       dns_rdata_uri_t *uri = source;
+       isc_region_t region;
+       isc_uint8_t len;
+
+       REQUIRE(type == 256);
+       REQUIRE(source != NULL);
+       REQUIRE(uri->common.rdtype == type);
+       REQUIRE(uri->common.rdclass == rdclass);
+       REQUIRE(uri->target != NULL && uri->tgt_len != 0);
+
+       UNUSED(type);
+       UNUSED(rdclass);
+
+       /*
+        * Priority
+        */
+       RETERR(uint16_tobuffer(uri->priority, target));
+
+       /*
+        * Weight
+        */
+       RETERR(uint16_tobuffer(uri->weight, target));
+
+       /*
+        * Target URI
+        */
+       len = 255U;
+       region.base = uri->target;
+       region.length = uri->tgt_len;
+       while (region.length > 0) {
+               REQUIRE(len == 255U);
+               len = uint8_fromregion(&region);
+               isc_region_consume(&region, 1);
+               if (region.length < len)
+                       return (ISC_R_UNEXPECTEDEND);
+               isc_region_consume(&region, len);
+       }
+
+       return (mem_tobuffer(target, uri->target, uri->tgt_len));
+}
+
+static inline isc_result_t
+tostruct_uri(ARGS_TOSTRUCT) {
+       dns_rdata_uri_t *uri = target;
+       isc_region_t sr;
+
+       REQUIRE(rdata->type == 256);
+       REQUIRE(target != NULL);
+       REQUIRE(rdata->length != 0);
+
+       uri->common.rdclass = rdata->rdclass;
+       uri->common.rdtype = rdata->type;
+       ISC_LINK_INIT(&uri->common, link);
+
+       dns_rdata_toregion(rdata, &sr);
+
+       /*
+        * Priority
+        */
+       if (sr.length < 2)
+               return (ISC_R_UNEXPECTEDEND);
+       uri->priority = uint16_fromregion(&sr);
+       isc_region_consume(&sr, 2);
+
+       /*
+        * Weight
+        */
+       if (sr.length < 2)
+               return (ISC_R_UNEXPECTEDEND);
+       uri->weight = uint16_fromregion(&sr);
+       isc_region_consume(&sr, 2);
+
+       /*
+        * Target URI
+        */
+       uri->tgt_len = sr.length;
+       uri->target = mem_maybedup(mctx, sr.base, sr.length);
+       if (uri->target == NULL)
+               return (ISC_R_NOMEMORY);
+
+       uri->mctx = mctx;
+       return (ISC_R_SUCCESS);
+}
+
+static inline void
+freestruct_uri(ARGS_FREESTRUCT) {
+       dns_rdata_uri_t *uri = (dns_rdata_uri_t *) source;
+
+       REQUIRE(source != NULL);
+       REQUIRE(uri->common.rdtype == 256);
+
+       if (uri->mctx == NULL)
+               return;
+
+       if (uri->target != NULL)
+               isc_mem_free(uri->mctx, uri->target);
+       uri->mctx = NULL;
+}
+
+static inline isc_result_t
+additionaldata_uri(ARGS_ADDLDATA) {
+       REQUIRE(rdata->type == 256);
+
+       UNUSED(rdata);
+       UNUSED(add);
+       UNUSED(arg);
+
+       return (ISC_R_SUCCESS);
+}
+
+static inline isc_result_t
+digest_uri(ARGS_DIGEST) {
+       isc_region_t r;
+
+       REQUIRE(rdata->type == 256);
+
+       dns_rdata_toregion(rdata, &r);
+
+       return ((digest)(arg, &r));
+}
+
+static inline isc_boolean_t
+checkowner_uri(ARGS_CHECKOWNER) {
+
+       REQUIRE(type == 256);
+
+       UNUSED(name);
+       UNUSED(type);
+       UNUSED(rdclass);
+       UNUSED(wildcard);
+
+       return (ISC_TRUE);
+}
+
+static inline isc_boolean_t
+checknames_uri(ARGS_CHECKNAMES) {
+
+       REQUIRE(rdata->type == 256);
+
+       UNUSED(rdata);
+       UNUSED(owner);
+       UNUSED(bad);
+
+       return (ISC_TRUE);
+}
+
+#endif /* GENERIC_URI_256_C */

diff --git a/lib/dns/rdata/generic/uri_256.h b/lib/dns/rdata/generic/uri_256.h
new file mode 100644 (file)
index 0000000..5061c03
--- /dev/null
+++ b/lib/dns/rdata/generic/uri_256.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2011-2013  Internet Systems Consortium, Inc. ("ISC")
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef GENERIC_URI_256_H
+#define GENERIC_URI_256_H 1
+
+/* $Id: uri_256.h,v 1.2 2011/03/03 14:10:27 fdupont Exp $ */
+
+typedef struct dns_rdata_uri {
+       dns_rdatacommon_t       common;
+       isc_mem_t *             mctx;
+       isc_uint16_t            priority;
+       isc_uint16_t            weight;
+       unsigned char *         target;
+       isc_uint16_t            tgt_len;
+} dns_rdata_uri_t;
+
+#endif /* GENERIC_URI_256_H */