/* * 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. */ /*! \file */ #include #include #include #include #include #include #include #include #include #include "dnstest.h" /***** ***** Commonly used structures *****/ /* * An array of these structures is passed to check_text_ok(). */ struct text_ok { const char *text_in; /* text passed to fromtext_*() */ const char *text_out; /* text expected from totext_*(); NULL indicates text_in is invalid */ int lineno; /* source line defining this RDATA */ }; typedef struct text_ok text_ok_t; /* * An array of these structures is passed to check_wire_ok(). */ struct wire_ok { unsigned char data[512]; /* RDATA in wire format */ size_t len; /* octets of data to parse */ bool ok; /* is this RDATA valid? */ int lineno; /* source line defining this RDATA */ }; typedef struct wire_ok wire_ok_t; /***** ***** Convenience macros for creating the above structures *****/ #define TEXT_VALID_CHANGED(data_in, data_out) \ { data_in, data_out, __LINE__ } #define TEXT_VALID(data) { data, data, __LINE__ } #define TEXT_INVALID(data) { data, NULL, __LINE__ } #define TEXT_SENTINEL() TEXT_INVALID(NULL) #define VARGC(...) (sizeof((unsigned char[]){ __VA_ARGS__ })) #define WIRE_TEST(ok, ...) { \ { __VA_ARGS__ }, VARGC(__VA_ARGS__), \ ok, __LINE__ \ } #define WIRE_VALID(...) WIRE_TEST(true, __VA_ARGS__) #define WIRE_INVALID(...) WIRE_TEST(false, __VA_ARGS__) #define WIRE_SENTINEL() WIRE_TEST(false) /***** ***** Checking functions used by test cases *****/ /* * Test whether converting rdata to a type-specific struct and then back to * rdata results in the same uncompressed wire form. This checks whether * tostruct_*() and fromstruct_*() routines for given RR class and type behave * consistently. * * This function is called for every correctly processed input RDATA, from both * check_text_ok_single() and check_wire_ok_single(). */ static void check_struct_conversions(dns_rdata_t *rdata, size_t structsize, int lineno) { dns_rdataclass_t rdclass = rdata->rdclass; dns_rdatatype_t type = rdata->type; isc_result_t result; isc_buffer_t target; void *rdata_struct; char buf[1024], hex[BUFSIZ]; rdata_struct = isc_mem_allocate(mctx, structsize); ATF_REQUIRE(rdata_struct != NULL); /* * Convert from uncompressed wire form into type-specific struct. */ result = dns_rdata_tostruct(rdata, rdata_struct, NULL); ATF_REQUIRE_EQ_MSG(result, ISC_R_SUCCESS, "%s (%u): dns_rdata_tostruct() failed", dns_test_tohex(rdata->data, rdata->length, hex, sizeof(hex)), rdata->length); /* * Convert from type-specific struct into uncompressed wire form. */ isc_buffer_init(&target, buf, sizeof(buf)); result = dns_rdata_fromstruct(NULL, rdclass, type, rdata_struct, &target); ATF_REQUIRE_EQ_MSG(result, ISC_R_SUCCESS, "line %d: %s (%u): dns_rdata_fromstruct() failed", lineno, dns_test_tohex(rdata->data, rdata->length, hex, sizeof(hex)), rdata->length); /* * Ensure results are consistent. */ ATF_REQUIRE_EQ_MSG(isc_buffer_usedlength(&target), rdata->length, "line %d: %s (%u): wire form data length changed " "after converting to type-specific struct and back", lineno, dns_test_tohex(rdata->data, rdata->length, hex, sizeof(hex)), rdata->length); ATF_REQUIRE_EQ_MSG(memcmp(buf, rdata->data, rdata->length), 0, "line %d: %s (%u): wire form data different after " "converting to type-specific struct and back", lineno, dns_test_tohex(rdata->data, rdata->length, hex, sizeof(hex)), rdata->length); isc_mem_free(mctx, rdata_struct); } /* * Check whether converting supplied text form RDATA into uncompressed wire * form succeeds (tests fromtext_*()). If so, try converting it back into text * form and see if it results in the original text (tests totext_*()). */ static void check_text_ok_single(const text_ok_t *text_ok, dns_rdataclass_t rdclass, dns_rdatatype_t type, size_t structsize) { dns_rdata_t rdata = DNS_RDATA_INIT; unsigned char buf_fromtext[1024]; char buf_totext[1024] = { 0 }; isc_buffer_t target; isc_result_t result; /* * Try converting text form RDATA into uncompressed wire form. */ result = dns_test_rdatafromstring(&rdata, rdclass, type, buf_fromtext, sizeof(buf_fromtext), text_ok->text_in); /* * Check whether result is as expected. */ if (text_ok->text_out != NULL) { ATF_REQUIRE_EQ_MSG(result, ISC_R_SUCCESS, "line %d: '%s': " "expected success, got failure", text_ok->lineno, text_ok->text_in); } else { ATF_REQUIRE_MSG(result != ISC_R_SUCCESS, "line %d: '%s': " "expected failure, got success", text_ok->lineno, text_ok->text_in); } /* * If text form RDATA was not parsed correctly, performing any * additional checks is pointless. */ if (result != ISC_R_SUCCESS) { return; } /* * Try converting uncompressed wire form RDATA back into text form and * check whether the resulting text is the same as the original one. */ isc_buffer_init(&target, buf_totext, sizeof(buf_totext)); result = dns_rdata_totext(&rdata, NULL, &target); ATF_REQUIRE_EQ_MSG(result, ISC_R_SUCCESS, "line %d: '%s': " "failed to convert rdata back to text form", text_ok->lineno, text_ok->text_in); ATF_REQUIRE_EQ_MSG(strcmp(buf_totext, text_ok->text_out), 0, "line %d: '%s': " "converts back to '%s', expected '%s'", text_ok->lineno, text_ok->text_in, buf_totext, text_ok->text_out); /* * Perform two-way conversion checks between uncompressed wire form and * type-specific struct. */ check_struct_conversions(&rdata, structsize, text_ok->lineno); } /* * Test whether supplied wire form RDATA is properly handled as being either * valid or invalid for an RR of given rdclass and type. */ static void check_wire_ok_single(const wire_ok_t *wire_ok, dns_rdataclass_t rdclass, dns_rdatatype_t type, size_t structsize) { isc_buffer_t source, target; unsigned char buf[1024]; dns_decompress_t dctx; isc_result_t result; dns_rdata_t rdata; char hex[BUFSIZ]; /* * Set up len-octet buffer pointing at data. */ isc_buffer_constinit(&source, wire_ok->data, wire_ok->len); isc_buffer_add(&source, wire_ok->len); isc_buffer_setactive(&source, wire_ok->len); /* * Initialize target structures. */ isc_buffer_init(&target, buf, sizeof(buf)); dns_rdata_init(&rdata); /* * Try converting wire data into uncompressed wire form. */ dns_decompress_init(&dctx, -1, DNS_DECOMPRESS_ANY); result = dns_rdata_fromwire(&rdata, rdclass, type, &source, &dctx, 0, &target); dns_decompress_invalidate(&dctx); /* * Check whether result is as expected. */ if (wire_ok->ok) { ATF_REQUIRE_EQ_MSG(result, ISC_R_SUCCESS, "line %d: %s (%lu): " "expected success, got failure", wire_ok->lineno, dns_test_tohex(wire_ok->data, wire_ok->len, hex, sizeof(hex)), (unsigned long)wire_ok->len); } else { ATF_REQUIRE_MSG(result != ISC_R_SUCCESS, "line %d: %s (%lu): " "expected failure, got success", wire_ok->lineno, dns_test_tohex(wire_ok->data, wire_ok->len, hex, sizeof(hex)), (unsigned long)wire_ok->len); } /* * If data was parsed correctly, perform two-way conversion checks * between uncompressed wire form and type-specific struct. */ if (result == ISC_R_SUCCESS) { check_struct_conversions(&rdata, structsize, wire_ok->lineno); } } /* * Test fromtext_*() and totext_*() routines for given RR class and type for * each text form RDATA in the supplied array. See the comment for * check_text_ok_single() for an explanation of how exactly these routines are * tested. */ static void check_text_ok(const text_ok_t *text_ok, dns_rdataclass_t rdclass, dns_rdatatype_t type, size_t structsize) { size_t i; /* * Check all entries in the supplied array. */ for (i = 0; text_ok[i].text_in != NULL; i++) { check_text_ok_single(&text_ok[i], rdclass, type, structsize); } } /* * For each wire form RDATA in the supplied array, check whether it is properly * handled as being either valid or invalid for an RR of given rdclass and * type, then check whether trying to process a zero-length wire data buffer * yields the expected result. This checks whether the fromwire_*() routine * for given RR class and type behaves as expected. */ static void check_wire_ok(const wire_ok_t *wire_ok, bool empty_ok, dns_rdataclass_t rdclass, dns_rdatatype_t type, size_t structsize) { wire_ok_t empty_wire = WIRE_TEST(empty_ok); size_t i; /* * Check all entries in the supplied array. */ for (i = 0; wire_ok[i].len != 0; i++) { check_wire_ok_single(&wire_ok[i], rdclass, type, structsize); } /* * Check empty wire data. */ check_wire_ok_single(&empty_wire, rdclass, type, structsize); } /* * Test whether supplied sets of text form and/or wire form RDATA are handled * as expected. This is just a helper function which should be the only * function called for a test case using it, due to the use of dns_test_begin() * and dns_test_end(). * * The empty_ok argument denotes whether an attempt to parse a zero-length wire * data buffer should succeed or not (it is valid for some RR types). There is * no point in performing a similar check for empty text form RDATA, because * dns_rdata_fromtext() returns ISC_R_UNEXPECTEDEND before calling fromtext_*() * for the given RR class and type. */ static void check_rdata(const text_ok_t *text_ok, const wire_ok_t *wire_ok, bool empty_ok, dns_rdataclass_t rdclass, dns_rdatatype_t type, size_t structsize) { isc_result_t result; result = dns_test_begin(NULL, false); ATF_REQUIRE_EQ(result, ISC_R_SUCCESS); if (text_ok != NULL) { check_text_ok(text_ok, rdclass, type, structsize); } if (wire_ok != NULL) { check_wire_ok(wire_ok, empty_ok, rdclass, type, structsize); } dns_test_end(); } /***** ***** Individual unit tests *****/ /* * CSYNC tests. * * RFC 7477: * * 2.1. The CSYNC Resource Record Format * * 2.1.1. The CSYNC Resource Record Wire Format * * The CSYNC RDATA consists of the following fields: * * 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | SOA Serial | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Flags | Type Bit Map / * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * / Type Bit Map (continued) / * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * 2.1.1.1. The SOA Serial Field * * The SOA Serial field contains a copy of the 32-bit SOA serial number * from the child zone. If the soaminimum flag is set, parental agents * querying children's authoritative servers MUST NOT act on data from * zones advertising an SOA serial number less than this value. See * [RFC1982] for properly implementing "less than" logic. If the * soaminimum flag is not set, parental agents MUST ignore the value in * the SOA Serial field. Clients can set the field to any value if the * soaminimum flag is unset, such as the number zero. * * (...) * * 2.1.1.2. The Flags Field * * The Flags field contains 16 bits of boolean flags that define * operations that affect the processing of the CSYNC record. The flags * defined in this document are as follows: * * 0x00 0x01: "immediate" * * 0x00 0x02: "soaminimum" * * The definitions for how the flags are to be used can be found in * Section 3. * * The remaining flags are reserved for use by future specifications. * Undefined flags MUST be set to 0 by CSYNC publishers. Parental * agents MUST NOT process a CSYNC record if it contains a 1 value for a * flag that is unknown to or unsupported by the parental agent. * * 2.1.1.2.1. The Type Bit Map Field * * The Type Bit Map field indicates the record types to be processed by * the parental agent, according to the procedures in Section 3. The * Type Bit Map field is encoded in the same way as the Type Bit Map * field of the NSEC record, described in [RFC4034], Section 4.1.2. If * a bit has been set that a parental agent implementation does not * understand, the parental agent MUST NOT act upon the record. * Specifically, a parental agent must not simply copy the data, and it * must understand the semantics associated with a bit in the Type Bit * Map field that has been set to 1. */ ATF_TC(csync); ATF_TC_HEAD(csync, tc) { atf_tc_set_md_var(tc, "descr", "CSYNC RDATA manipulations"); } ATF_TC_BODY(csync, tc) { text_ok_t text_ok[] = { TEXT_INVALID(""), TEXT_INVALID("0"), TEXT_VALID("0 0"), TEXT_VALID("0 0 A"), TEXT_VALID("0 0 NS"), TEXT_VALID("0 0 AAAA"), TEXT_VALID("0 0 A AAAA"), TEXT_VALID("0 0 A NS AAAA"), TEXT_INVALID("0 0 A NS AAAA BOGUS"), TEXT_SENTINEL() }; wire_ok_t wire_ok[] = { /* * Short. */ WIRE_INVALID(0x00), /* * Short. */ WIRE_INVALID(0x00, 0x00), /* * Short. */ WIRE_INVALID(0x00, 0x00, 0x00), /* * Short. */ WIRE_INVALID(0x00, 0x00, 0x00, 0x00), /* * Short. */ WIRE_INVALID(0x00, 0x00, 0x00, 0x00, 0x00), /* * Serial + flags only. */ WIRE_VALID(0x00, 0x00, 0x00, 0x00, 0x00, 0x00), /* * Bad type map. */ WIRE_INVALID(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), /* * Bad type map. */ WIRE_INVALID(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), /* * Good type map. */ WIRE_VALID(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02), /* * Sentinel. */ WIRE_SENTINEL() }; UNUSED(tc); check_rdata(text_ok, wire_ok, false, dns_rdataclass_in, dns_rdatatype_csync, sizeof(dns_rdata_csync_t)); } /* * DOA tests. * * draft-durand-doa-over-dns-03: * * 3.2. DOA RDATA Wire Format * * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ * 0: | | * | DOA-ENTERPRISE | * | | * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ * 4: | | * | DOA-TYPE | * | | * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ * 8: | DOA-LOCATION | DOA-MEDIA-TYPE / * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ * 10: / / * / DOA-MEDIA-TYPE (continued) / * / / * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ * / / * / DOA-DATA / * / / * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ * * DOA-ENTERPRISE: a 32-bit unsigned integer in network order. * * DOA-TYPE: a 32-bit unsigned integer in network order. * * DOA-LOCATION: an 8-bit unsigned integer. * * DOA-MEDIA-TYPE: A (see [RFC1035]). The first * octet of the contains the number of characters to * follow. * * DOA-DATA: A variable length blob of binary data. The length of the * DOA-DATA is not contained within the wire format of the RR and has to * be computed from the RDLENGTH of the entire RR once other fields have * been taken into account. * * 3.3. DOA RDATA Presentation Format * * The DOA-ENTERPRISE field is presented as an unsigned 32-bit decimal * integer with range 0 - 4,294,967,295. * * The DOA-TYPE field is presented as an unsigned 32-bit decimal integer * with range 0 - 4,294,967,295. * * The DOA-LOCATION field is presented as an unsigned 8-bit decimal * integer with range 0 - 255. * * The DOA-MEDIA-TYPE field is presented as a single . * * The DOA-DATA is presented as Base64 encoded data [RFC4648] unless the * DOA-DATA is empty in which case it is presented as a single dash * character ("-", ASCII 45). White space is permitted within Base64 * data. */ ATF_TC(doa); ATF_TC_HEAD(doa, tc) { atf_tc_set_md_var(tc, "descr", "DOA RDATA manipulations"); } ATF_TC_BODY(doa, tc) { text_ok_t text_ok[] = { /* * Valid, non-empty DOA-DATA. */ TEXT_VALID("0 0 1 \"text/plain\" Zm9v"), /* * Valid, non-empty DOA-DATA with whitespace in between. */ TEXT_VALID_CHANGED("0 0 1 \"text/plain\" Zm 9v", "0 0 1 \"text/plain\" Zm9v"), /* * Valid, unquoted DOA-MEDIA-TYPE, non-empty DOA-DATA. */ TEXT_VALID_CHANGED("0 0 1 text/plain Zm9v", "0 0 1 \"text/plain\" Zm9v"), /* * Invalid, quoted non-empty DOA-DATA. */ TEXT_INVALID("0 0 1 \"text/plain\" \"Zm9v\""), /* * Valid, empty DOA-DATA. */ TEXT_VALID("0 0 1 \"text/plain\" -"), /* * Invalid, quoted empty DOA-DATA. */ TEXT_INVALID("0 0 1 \"text/plain\" \"-\""), /* * Invalid, missing "-" in empty DOA-DATA. */ TEXT_INVALID("0 0 1 \"text/plain\""), /* * Valid, undefined DOA-LOCATION. */ TEXT_VALID("0 0 100 \"text/plain\" Zm9v"), /* * Invalid, DOA-LOCATION too big. */ TEXT_INVALID("0 0 256 \"text/plain\" ZM9v"), /* * Valid, empty DOA-MEDIA-TYPE, non-empty DOA-DATA. */ TEXT_VALID("0 0 2 \"\" aHR0cHM6Ly93d3cuaXNjLm9yZy8="), /* * Valid, empty DOA-MEDIA-TYPE, empty DOA-DATA. */ TEXT_VALID("0 0 1 \"\" -"), /* * Valid, DOA-MEDIA-TYPE with a space. */ TEXT_VALID("0 0 1 \"plain text\" Zm9v"), /* * Invalid, missing DOA-MEDIA-TYPE. */ TEXT_INVALID("1234567890 1234567890 1"), /* * Valid, DOA-DATA over 255 octets. */ TEXT_VALID("1234567890 1234567890 1 \"image/gif\" " "R0lGODlhKAAZAOMCAGZmZgBmmf///zOZzMz//5nM/zNmmWbM" "/5nMzMzMzACZ/////////////////////yH5BAEKAA8ALAAA" "AAAoABkAAATH8IFJK5U2a4337F5ogRkpnoCJrly7PrCKyh8c" "3HgAhzT35MDbbtO7/IJIHbGiOiaTxVTpSVWWLqNq1UVyapNS" "1wd3OAxug0LhnCubcVhsxysQnOt4ATpvvzHlFzl1AwODhWeF" "AgRpen5/UhheAYMFdUB4SFcpGEGGdQeCAqBBLTuSk30EeXd9" "pEsAbKGxjHqDSE0Sp6ixN4N1BJmbc7lIhmsBich1awPAjkY1" "SZR8bJWrz382SGqIBQQFQd4IsUTaX+ceuudPEQA7"), /* * Invalid, bad Base64 in DOA-DATA. */ TEXT_INVALID("1234567890 1234567890 1 \"image/gif\" R0lGODl"), /* * Sentinel. */ TEXT_SENTINEL() }; wire_ok_t wire_ok[] = { /* * Valid, empty DOA-MEDIA-TYPE, empty DOA-DATA. */ WIRE_VALID(0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78, 0x01, 0x00), /* * Invalid, missing DOA-MEDIA-TYPE. */ WIRE_INVALID(0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78, 0x01), /* * Invalid, malformed DOA-MEDIA-TYPE length. */ WIRE_INVALID(0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78, 0x01, 0xff), /* * Valid, empty DOA-DATA. */ WIRE_VALID(0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78, 0x01, 0x03, 0x66, 0x6f, 0x6f), /* * Valid, non-empty DOA-DATA. */ WIRE_VALID(0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78, 0x01, 0x03, 0x66, 0x6f, 0x6f, 0x62, 0x61, 0x72), /* * Valid, DOA-DATA over 255 octets. */ WIRE_VALID(0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78, 0x01, 0x06, 0x62, 0x69, 0x6e, 0x61, 0x72, 0x79, 0x00, 0x66, 0x99, 0xff, 0xff, 0xff, 0x33, 0x99, 0xcc, 0xcc, 0xff, 0xff, 0x99, 0xcc, 0xff, 0x33, 0x66, 0x99, 0x66, 0xcc, 0xff, 0x99, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x00, 0x99, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x21, 0xf9, 0x04, 0x01, 0x0a, 0x00, 0x0f, 0x00, 0x2c, 0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x19, 0x00, 0x00, 0x04, 0xc7, 0xf0, 0x81, 0x49, 0x2b, 0x95, 0x36, 0x6b, 0x8d, 0xf7, 0xec, 0x5e, 0x68, 0x81, 0x19, 0x29, 0x9e, 0x80, 0x89, 0xae, 0x5c, 0xbb, 0x3e, 0xb0, 0x8a, 0xca, 0x1f, 0x1c, 0xdc, 0x78, 0x00, 0x87, 0x34, 0xf7, 0xe4, 0xc0, 0xdb, 0x6e, 0xd3, 0xbb, 0xfc, 0x82, 0x48, 0x1d, 0xb1, 0xa2, 0x3a, 0x26, 0x93, 0xc5, 0x54, 0xe9, 0x49, 0x55, 0x96, 0x2e, 0xa3, 0x6a, 0xd5, 0x45, 0x72, 0x6a, 0x93, 0x52, 0xd7, 0x07, 0x77, 0x38, 0x0c, 0x6e, 0x83, 0x42, 0xe1, 0x9c, 0x2b, 0x9b, 0x71, 0x58, 0x6c, 0xc7, 0x2b, 0x10, 0x9c, 0xeb, 0x78, 0x01, 0x3a, 0x6f, 0xbf, 0x31, 0xe5, 0x17, 0x39, 0x75, 0x03, 0x03, 0x83, 0x85, 0x67, 0x85, 0x02, 0x04, 0x69, 0x7a, 0x7e, 0x7f, 0x52, 0x18, 0x5e, 0x01, 0x83, 0x05, 0x75, 0x40, 0x78, 0x48, 0x57, 0x29, 0x18, 0x41, 0x86, 0x75, 0x07, 0x82, 0x02, 0xa0, 0x41, 0x2d, 0x3b, 0x92, 0x93, 0x7d, 0x04, 0x79, 0x77, 0x7d, 0xa4, 0x4b, 0x00, 0x6c, 0xa1, 0xb1, 0x8c, 0x7a, 0x83, 0x48, 0x4d, 0x12, 0xa7, 0xa8, 0xb1, 0x37, 0x83, 0x75, 0x04, 0x99, 0x9b, 0x73, 0xb9, 0x48, 0x86, 0x6b, 0x01, 0x89, 0xc8, 0x75, 0x6b, 0x03, 0xc0, 0x8e, 0x46, 0x35, 0x49, 0x94, 0x7c, 0x6c, 0x95, 0xab, 0xcf, 0x7f, 0x36, 0x48, 0x6a, 0x88, 0x05, 0x04, 0x05, 0x41, 0xde, 0x08, 0xb1, 0x44, 0xda, 0x5f, 0xe7, 0x1e, 0xba, 0xe7, 0x4f, 0x11, 0x00, 0x3b), /* * Sentinel. */ WIRE_SENTINEL() }; UNUSED(tc); check_rdata(text_ok, wire_ok, false, dns_rdataclass_in, dns_rdatatype_doa, sizeof(dns_rdata_doa_t)); } /* * EDNS Client Subnet tests. * * RFC 7871: * * 6. Option Format * * This protocol uses an EDNS0 [RFC6891] option to include client * address information in DNS messages. The option is structured as * follows: * * +0 (MSB) +1 (LSB) * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ * 0: | OPTION-CODE | * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ * 2: | OPTION-LENGTH | * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ * 4: | FAMILY | * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ * 6: | SOURCE PREFIX-LENGTH | SCOPE PREFIX-LENGTH | * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ * 8: | ADDRESS... / * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ * * o (Defined in [RFC6891]) OPTION-CODE, 2 octets, for ECS is 8 (0x00 * 0x08). * * o (Defined in [RFC6891]) OPTION-LENGTH, 2 octets, contains the * length of the payload (everything after OPTION-LENGTH) in octets. * * o FAMILY, 2 octets, indicates the family of the address contained in * the option, using address family codes as assigned by IANA in * Address Family Numbers [Address_Family_Numbers]. * * The format of the address part depends on the value of FAMILY. This * document only defines the format for FAMILY 1 (IPv4) and FAMILY 2 * (IPv6), which are as follows: * * o SOURCE PREFIX-LENGTH, an unsigned octet representing the leftmost * number of significant bits of ADDRESS to be used for the lookup. * In responses, it mirrors the same value as in the queries. * * o SCOPE PREFIX-LENGTH, an unsigned octet representing the leftmost * number of significant bits of ADDRESS that the response covers. * In queries, it MUST be set to 0. * * o ADDRESS, variable number of octets, contains either an IPv4 or * IPv6 address, depending on FAMILY, which MUST be truncated to the * number of bits indicated by the SOURCE PREFIX-LENGTH field, * padding with 0 bits to pad to the end of the last octet needed. * * o A server receiving an ECS option that uses either too few or too * many ADDRESS octets, or that has non-zero ADDRESS bits set beyond * SOURCE PREFIX-LENGTH, SHOULD return FORMERR to reject the packet, * as a signal to the software developer making the request to fix * their implementation. * * All fields are in network byte order ("big-endian", per [RFC1700], * Data Notation). */ ATF_TC(edns_client_subnet); ATF_TC_HEAD(edns_client_subnet, tc) { atf_tc_set_md_var(tc, "descr", "OPT RDATA with EDNS Client Subnet manipulations"); } ATF_TC_BODY(edns_client_subnet, tc) { wire_ok_t wire_ok[] = { /* * Option code with no content. */ WIRE_INVALID(0x00, 0x08, 0x00, 0x00), /* * Option code family 0, source 0, scope 0. */ WIRE_VALID(0x00, 0x08, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00), /* * Option code family 1 (IPv4), source 0, scope 0. */ WIRE_VALID(0x00, 0x08, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00), /* * Option code family 2 (IPv6) , source 0, scope 0. */ WIRE_VALID(0x00, 0x08, 0x00, 0x04, 0x00, 0x02, 0x00, 0x00), /* * Extra octet. */ WIRE_INVALID(0x00, 0x08, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00), /* * Source too long for IPv4. */ WIRE_INVALID(0x00, 0x08, 0x00, 8, 0x00, 0x01, 33, 0x00, 0x00, 0x00, 0x00, 0x00), /* * Source too long for IPv6. */ WIRE_INVALID(0x00, 0x08, 0x00, 20, 0x00, 0x02, 129, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), /* * Scope too long for IPv4. */ WIRE_INVALID(0x00, 0x08, 0x00, 8, 0x00, 0x01, 0x00, 33, 0x00, 0x00, 0x00, 0x00), /* * Scope too long for IPv6. */ WIRE_INVALID(0x00, 0x08, 0x00, 20, 0x00, 0x02, 0x00, 129, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), /* * When family=0, source and scope should be 0. */ WIRE_VALID(0x00, 0x08, 0x00, 4, 0x00, 0x00, 0x00, 0x00), /* * When family=0, source and scope should be 0. */ WIRE_INVALID(0x00, 0x08, 0x00, 5, 0x00, 0x00, 0x01, 0x00, 0x00), /* * When family=0, source and scope should be 0. */ WIRE_INVALID(0x00, 0x08, 0x00, 5, 0x00, 0x00, 0x00, 0x01, 0x00), /* * Length too short for source IPv4. */ WIRE_INVALID(0x00, 0x08, 0x00, 7, 0x00, 0x01, 32, 0x00, 0x00, 0x00, 0x00), /* * Length too short for source IPv6. */ WIRE_INVALID(0x00, 0x08, 0x00, 19, 0x00, 0x02, 128, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), /* * Sentinel. */ WIRE_SENTINEL() }; UNUSED(tc); check_rdata(NULL, wire_ok, true, dns_rdataclass_in, dns_rdatatype_opt, sizeof(dns_rdata_opt_t)); } /* * Successful load test. */ ATF_TC(hip); ATF_TC_HEAD(hip, tc) { atf_tc_set_md_var(tc, "descr", "that a oversized HIP record will " "be rejected"); } ATF_TC_BODY(hip, tc) { unsigned char hipwire[DNS_RDATA_MAXLENGTH] = { 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x04, 0x41, 0x42, 0x43, 0x44, 0x00 }; unsigned char buf[1024*1024]; isc_buffer_t source, target; dns_rdata_t rdata; dns_decompress_t dctx; isc_result_t result; size_t i; UNUSED(tc); result = dns_test_begin(NULL, false); ATF_REQUIRE_EQ(result, ISC_R_SUCCESS); /* * Fill the rest of input buffer with compression pointers. */ for (i = 12; i < sizeof(hipwire) - 2; i += 2) { hipwire[i] = 0xc0; hipwire[i+1] = 0x06; } isc_buffer_init(&source, hipwire, sizeof(hipwire)); isc_buffer_add(&source, sizeof(hipwire)); isc_buffer_setactive(&source, i); isc_buffer_init(&target, buf, sizeof(buf)); dns_rdata_init(&rdata); dns_decompress_init(&dctx, -1, DNS_DECOMPRESS_ANY); result = dns_rdata_fromwire(&rdata, dns_rdataclass_in, dns_rdatatype_hip, &source, &dctx, 0, &target); dns_decompress_invalidate(&dctx); ATF_REQUIRE_EQ(result, DNS_R_FORMERR); dns_test_end(); } /* * ISDN tests. * * RFC 1183: * * 3.2. The ISDN RR * * The ISDN RR is defined with mnemonic ISDN and type code 20 (decimal). * * An ISDN (Integrated Service Digital Network) number is simply a * telephone number. The intent of the members of the CCITT is to * upgrade all telephone and data network service to a common service. * * The numbering plan (E.163/E.164) is the same as the familiar * international plan for POTS (an un-official acronym, meaning Plain * Old Telephone Service). In E.166, CCITT says "An E.163/E.164 * telephony subscriber may become an ISDN subscriber without a number * change." * * ISDN has the following format: * * ISDN * * The field is required; is optional. * * identifies the ISDN number of and DDI (Direct * Dial In) if any, as defined by E.164 [8] and E.163 [7], the ISDN and * PSTN (Public Switched Telephone Network) numbering plan. E.163 * defines the country codes, and E.164 the form of the addresses. Its * format in master files is a syntactically * identical to that used in TXT and HINFO. * * specifies the subaddress (SA). The format of in master * files is a syntactically identical to that used in * TXT and HINFO. * * The format of ISDN is class insensitive. ISDN RRs cause no * additional section processing. * * The is a string of characters, normally decimal * digits, beginning with the E.163 country code and ending with the DDI * if any. Note that ISDN, in Q.931, permits any IA5 character in the * general case. * * The is a string of hexadecimal digits. For digits 0-9, the * concrete encoding in the Q.931 call setup information element is * identical to BCD. * * For example: * * Relay.Prime.COM. IN ISDN 150862028003217 * sh.Prime.COM. IN ISDN 150862028003217 004 * * (Note: "1" is the country code for the North American Integrated * Numbering Area, i.e., the system of "area codes" familiar to people * in those countries.) * * The RR data is the ASCII representation of the digits. It is encoded * as one or two s, i.e., count followed by * characters. */ ATF_TC(isdn); ATF_TC_HEAD(isdn, tc) { atf_tc_set_md_var(tc, "descr", "ISDN RDATA manipulations"); } ATF_TC_BODY(isdn, tc) { wire_ok_t wire_ok[] = { /* * "". */ WIRE_VALID(0x00), /* * "\001". */ WIRE_VALID(0x01, 0x01), /* * "\001" "". */ WIRE_VALID(0x01, 0x01, 0x00), /* * "\001" "\001". */ WIRE_VALID(0x01, 0x01, 0x01, 0x01), /* * Sentinel. */ WIRE_SENTINEL() }; UNUSED(tc); check_rdata(NULL, wire_ok, false, dns_rdataclass_in, dns_rdatatype_isdn, sizeof(dns_rdata_isdn_t)); } /* * NSEC tests. * * RFC 4034: * * 4.1. NSEC RDATA Wire Format * * The RDATA of the NSEC RR is as shown below: * * 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * / Next Domain Name / * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * / Type Bit Maps / * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * 4.1.1. The Next Domain Name Field * * The Next Domain field contains the next owner name (in the canonical * ordering of the zone) that has authoritative data or contains a * delegation point NS RRset; see Section 6.1 for an explanation of * canonical ordering. The value of the Next Domain Name field in the * last NSEC record in the zone is the name of the zone apex (the owner * name of the zone's SOA RR). This indicates that the owner name of * the NSEC RR is the last name in the canonical ordering of the zone. * * A sender MUST NOT use DNS name compression on the Next Domain Name * field when transmitting an NSEC RR. * * Owner names of RRsets for which the given zone is not authoritative * (such as glue records) MUST NOT be listed in the Next Domain Name * unless at least one authoritative RRset exists at the same owner * name. * * 4.1.2. The Type Bit Maps Field * * The Type Bit Maps field identifies the RRset types that exist at the * NSEC RR's owner name. * * The RR type space is split into 256 window blocks, each representing * the low-order 8 bits of the 16-bit RR type space. Each block that * has at least one active RR type is encoded using a single octet * window number (from 0 to 255), a single octet bitmap length (from 1 * to 32) indicating the number of octets used for the window block's * bitmap, and up to 32 octets (256 bits) of bitmap. * * Blocks are present in the NSEC RR RDATA in increasing numerical * order. * * Type Bit Maps Field = ( Window Block # | Bitmap Length | Bitmap )+ * * where "|" denotes concatenation. * * Each bitmap encodes the low-order 8 bits of RR types within the * window block, in network bit order. The first bit is bit 0. For * window block 0, bit 1 corresponds to RR type 1 (A), bit 2 corresponds * to RR type 2 (NS), and so forth. For window block 1, bit 1 * corresponds to RR type 257, and bit 2 to RR type 258. If a bit is * set, it indicates that an RRset of that type is present for the NSEC * RR's owner name. If a bit is clear, it indicates that no RRset of * that type is present for the NSEC RR's owner name. * * Bits representing pseudo-types MUST be clear, as they do not appear * in zone data. If encountered, they MUST be ignored upon being read. */ ATF_TC(nsec); ATF_TC_HEAD(nsec, tc) { atf_tc_set_md_var(tc, "descr", "NSEC RDATA manipulations"); } ATF_TC_BODY(nsec, tc) { text_ok_t text_ok[] = { TEXT_INVALID(""), TEXT_INVALID("."), TEXT_VALID(". RRSIG"), TEXT_SENTINEL() }; wire_ok_t wire_ok[] = { WIRE_INVALID(0x00), WIRE_INVALID(0x00, 0x00), WIRE_INVALID(0x00, 0x00, 0x00), WIRE_VALID(0x00, 0x00, 0x01, 0x02), WIRE_INVALID() }; UNUSED(tc); check_rdata(text_ok, wire_ok, false, dns_rdataclass_in, dns_rdatatype_nsec, sizeof(dns_rdata_nsec_t)); } /* * NSEC3 tests. * * RFC 5155. */ ATF_TC(nsec3); ATF_TC_HEAD(nsec3, tc) { atf_tc_set_md_var(tc, "descr", "NSEC3 RDATA manipulations"); } ATF_TC_BODY(nsec3, tc) { text_ok_t text_ok[] = { TEXT_INVALID(""), TEXT_INVALID("."), TEXT_INVALID(". RRSIG"), TEXT_INVALID("1 0 10 76931F"), TEXT_INVALID("1 0 10 76931F IMQ912BREQP1POLAH3RMONG;UED541AS"), TEXT_INVALID("1 0 10 76931F IMQ912BREQP1POLAH3RMONG;UED541AS A RRSIG"), TEXT_VALID("1 0 10 76931F AJHVGTICN6K0VDA53GCHFMT219SRRQLM A RRSIG"), TEXT_VALID("1 0 10 76931F AJHVGTICN6K0VDA53GCHFMT219SRRQLM"), TEXT_VALID("1 0 10 - AJHVGTICN6K0VDA53GCHFMT219SRRQLM"), TEXT_SENTINEL() }; UNUSED(tc); check_rdata(text_ok, NULL, false, dns_rdataclass_in, dns_rdatatype_nsec3, sizeof(dns_rdata_nsec3_t)); } /* * WKS tests. * * RFC 1035: * * 3.4.2. WKS RDATA format * * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ * | ADDRESS | * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ * | PROTOCOL | | * +--+--+--+--+--+--+--+--+ | * | | * / / * / / * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ * * where: * * ADDRESS An 32 bit Internet address * * PROTOCOL An 8 bit IP protocol number * * A variable length bit map. The bit map must be a * multiple of 8 bits long. * * The WKS record is used to describe the well known services supported by * a particular protocol on a particular internet address. The PROTOCOL * field specifies an IP protocol number, and the bit map has one bit per * port of the specified protocol. The first bit corresponds to port 0, * the second to port 1, etc. If the bit map does not include a bit for a * protocol of interest, that bit is assumed zero. The appropriate values * and mnemonics for ports and protocols are specified in [RFC-1010]. * * For example, if PROTOCOL=TCP (6), the 26th bit corresponds to TCP port * 25 (SMTP). If this bit is set, a SMTP server should be listening on TCP * port 25; if zero, SMTP service is not supported on the specified * address. */ ATF_TC(wks); ATF_TC_HEAD(wks, tc) { atf_tc_set_md_var(tc, "descr", "WKS RDATA manipulations"); } ATF_TC_BODY(wks, tc) { wire_ok_t wire_ok[] = { /* * Too short. */ WIRE_INVALID(0x00, 0x08, 0x00, 0x00), /* * Minimal TCP. */ WIRE_VALID(0x00, 0x08, 0x00, 0x00, 6), /* * Minimal UDP. */ WIRE_VALID(0x00, 0x08, 0x00, 0x00, 17), /* * Minimal other. */ WIRE_VALID(0x00, 0x08, 0x00, 0x00, 1), /* * Sentinel. */ WIRE_SENTINEL() }; UNUSED(tc); check_rdata(NULL, wire_ok, false, dns_rdataclass_in, dns_rdatatype_wks, sizeof(dns_rdata_in_wks_t)); } /***** ***** Main *****/ ATF_TP_ADD_TCS(tp) { ATF_TP_ADD_TC(tp, csync); ATF_TP_ADD_TC(tp, doa); ATF_TP_ADD_TC(tp, edns_client_subnet); ATF_TP_ADD_TC(tp, hip); ATF_TP_ADD_TC(tp, isdn); ATF_TP_ADD_TC(tp, nsec); ATF_TP_ADD_TC(tp, nsec3); ATF_TP_ADD_TC(tp, wks); return (atf_no_error()); }