diff options
Diffstat (limited to 'src/lib/dns/tests/rdata_nsecbitmap_unittest.cc')
| -rw-r--r-- | src/lib/dns/tests/rdata_nsecbitmap_unittest.cc | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/src/lib/dns/tests/rdata_nsecbitmap_unittest.cc b/src/lib/dns/tests/rdata_nsecbitmap_unittest.cc index f18e9dfbfa..8b13789179 100644 --- a/src/lib/dns/tests/rdata_nsecbitmap_unittest.cc +++ b/src/lib/dns/tests/rdata_nsecbitmap_unittest.cc @@ -1,269 +1 @@ -// Copyright (C) 2011-2019 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/. -#include <config.h> - -#include <dns/tests/unittest_util.h> - -#include <dns/exceptions.h> -#include <dns/rdata.h> -#include <dns/rdataclass.h> -#include <dns/rrclass.h> -#include <dns/rrtype.h> - -#include <gtest/gtest.h> - -#include <dns/tests/rdata_unittest.h> -#include <util/unittests/wiredata.h> - -#include <boost/lexical_cast.hpp> - -#include <string> -#include <vector> - -using namespace std; -using namespace isc::dns; -using namespace isc::dns::rdata; -using namespace isc::util; -using isc::UnitTestUtil; -using isc::util::unittests::matchWireData; -using boost::lexical_cast; - -namespace { - -// Template for shared tests for NSEC and NSEC3 bitmaps -template <typename RDATA_TYPE> -class NSECLikeBitmapTest : public RdataTest { -protected: - RDATA_TYPE fromText(const string& rdata_text) { - return (RDATA_TYPE(rdata_text)); - } - - vector<RDATA_TYPE> compare_set; // used in compare() tests - - void compareCheck() const { - typename vector<RDATA_TYPE>::const_iterator it; - typename vector<RDATA_TYPE>::const_iterator const it_end = - compare_set.end(); - for (it = compare_set.begin(); it != it_end - 1; ++it) { - SCOPED_TRACE("compare " + it->toText() + " to " + - (it + 1)->toText()); - EXPECT_GT(0, (*it).compare(*(it + 1))); - EXPECT_LT(0, (*(it + 1)).compare(*it)); - } - } - - // These depend on the specific RR type. We use specialized methods - // for them. - static RRType getType(); // return either RRType::NSEC() or NSEC3() - static string getWireFilePrefix(); - static string getCommonText(); // commonly used part of textual form -}; - -// Instantiate specific typed tests -typedef ::testing::Types<generic::NSEC, generic::NSEC3> TestRdataTypes; -#ifdef TYPED_TEST_SUITE -TYPED_TEST_SUITE(NSECLikeBitmapTest, TestRdataTypes); -#else -TYPED_TEST_CASE(NSECLikeBitmapTest, TestRdataTypes); -#endif - -// NSEC and NSEC3 bitmaps have some subtle differences, in which case we -// need to test them separately. Using these typedef type names with TEST_F -// will do the trick. -typedef NSECLikeBitmapTest<generic::NSEC3> NSEC3BitmapTest; -typedef NSECLikeBitmapTest<generic::NSEC> NSECBitmapTest; - -template <> -string -NSECLikeBitmapTest<generic::NSEC>::getWireFilePrefix() { - return ("rdata_nsec_"); -} - -template <> -RRType -NSECLikeBitmapTest<generic::NSEC>::getType() { - return (RRType::NSEC()); -} - -template <> -string -NSECLikeBitmapTest<generic::NSEC3>::getWireFilePrefix() { - return ("rdata_nsec3_"); -} - -template <> -RRType -NSECLikeBitmapTest<generic::NSEC3>::getType() { - return (RRType::NSEC3()); -} - -template <> -string -NSECLikeBitmapTest<generic::NSEC>::getCommonText() { - return ("next. "); -} - -template <> -string -NSECLikeBitmapTest<generic::NSEC3>::getCommonText() { - return ("1 1 12 AABBCCDD 2T7B4G4VSA5SMI47K61MV5BV1A22BOJR "); -} - -// Tests against various types of bogus NSEC/NSEC3 type bitmaps. -// The syntax and semantics are common for both RR types, and our -// implementation of that part is shared, so in theory it should be sufficient -// to test for only one RR type. But we check for both just in case. -TYPED_TEST(NSECLikeBitmapTest, createFromWire) { - // A malformed NSEC bitmap length field that could cause overflow. - EXPECT_THROW(this->rdataFactoryFromFile(this->getType(), RRClass::IN(), - (this->getWireFilePrefix() + - "fromWire4.wire").c_str()), - DNSMessageFORMERR); - - // The bitmap field is incomplete (only the first byte is included) - EXPECT_THROW(this->rdataFactoryFromFile(this->getType(), RRClass::IN(), - (this->getWireFilePrefix() + - "fromWire5.wire").c_str()), - DNSMessageFORMERR); - - // Bitmap length is 0, which is invalid. - EXPECT_THROW(this->rdataFactoryFromFile(this->getType(), RRClass::IN(), - (this->getWireFilePrefix() + - "fromWire6.wire").c_str()), - DNSMessageFORMERR); - - // Too large bitmap length with a short buffer. - EXPECT_THROW(this->rdataFactoryFromFile(this->getType(), RRClass::IN(), - (this->getWireFilePrefix() + - "fromWire3").c_str()), - DNSMessageFORMERR); - - // A boundary case: longest possible bitmaps (32 maps). This should be - // accepted. - EXPECT_NO_THROW(this->rdataFactoryFromFile(this->getType(), RRClass::IN(), - (this->getWireFilePrefix() + - "fromWire7.wire").c_str())); - - // Another boundary condition: 33 bitmaps, which should be rejected. - EXPECT_THROW(this->rdataFactoryFromFile(this->getType(), RRClass::IN(), - (this->getWireFilePrefix() + - "fromWire8.wire").c_str()), - DNSMessageFORMERR); - - // Disordered bitmap window blocks. - EXPECT_THROW(this->rdataFactoryFromFile(this->getType(), RRClass::IN(), - (this->getWireFilePrefix() + - "fromWire9.wire").c_str()), - DNSMessageFORMERR); - - // Bitmap ending with all-zero bytes. Not necessarily harmful except - // the additional overhead of parsing, but invalid according to the - // spec anyway. - EXPECT_THROW(this->rdataFactoryFromFile(this->getType(), RRClass::IN(), - (this->getWireFilePrefix() + - "fromWire10.wire").c_str()), - DNSMessageFORMERR); -} - -// This tests the result of toText() with various kinds of NSEC/NSEC3 bitmaps. -// It also tests the "from text" constructor as a result. -TYPED_TEST(NSECLikeBitmapTest, toText) { - // A simple case (some commonly seen RR types in NSEC(3) bitmaps) - string rdata_text = this->getCommonText() + "NS SOA RRSIG DNSKEY"; - EXPECT_EQ(rdata_text, this->fromText(rdata_text).toText()); - - // Similar to above, but involves more than one bitmap window blocks. - rdata_text = this->getCommonText() + "NS DLV"; - EXPECT_EQ(rdata_text, this->fromText(rdata_text).toText()); - - // Make sure all possible bits in a one-octet bitmap field are handled - // correctly. - // We use the range around 1024 (reasonably higher number) so it's - // unlikely that they have predefined mnemonic and can be safely converted - // to TYPEnnnn by toText(). - for (unsigned int i = 1024; i < 1032; ++i) { - rdata_text = this->getCommonText() + "TYPE" + lexical_cast<string>(i); - EXPECT_EQ(rdata_text, this->fromText(rdata_text).toText()); - } - - // Make sure all possible 32 octets in a longest possible block are - // handled correctly. - for (unsigned int i = 1024; i < 1024 + 256; i += 8) { - rdata_text = this->getCommonText() + "TYPE" + lexical_cast<string>(i); - EXPECT_EQ(rdata_text, this->fromText(rdata_text).toText()); - } - - // Check for the highest window block. - rdata_text = this->getCommonText() + "TYPE65535"; - EXPECT_EQ(rdata_text, this->fromText(rdata_text).toText()); -} - -TYPED_TEST(NSECLikeBitmapTest, compare) { - // Bit map: [win=0][len=1] 00000010 - this->compare_set.push_back(this->fromText(this->getCommonText() + "SOA")); - // Bit map: [win=0][len=1] 00000010, [win=4][len=1] 10000000 - this->compare_set.push_back(this->fromText(this->getCommonText() + - "SOA TYPE1024")); - // Bit map: [win=0][len=1] 00100000 - this->compare_set.push_back(this->fromText(this->getCommonText() + "NS")); - // Bit map: [win=0][len=1] 00100010 - this->compare_set.push_back(this->fromText(this->getCommonText() + - "NS SOA")); - // Bit map: [win=0][len=2] 00100000, 00000001 - this->compare_set.push_back(this->fromText(this->getCommonText() + - "NS MX")); - // Bit map: [win=4][len=1] 10000000 - this->compare_set.push_back(this->fromText(this->getCommonText() + - "TYPE1024")); - - this->compareCheck(); -} - -// NSEC bitmaps must not be empty -TEST_F(NSECBitmapTest, emptyMap) { - EXPECT_THROW(this->fromText("next.example.").toText(), InvalidRdataText); - - EXPECT_THROW(this->rdataFactoryFromFile(this->getType(), RRClass::IN(), - (this->getWireFilePrefix() + - "fromWire16.wire").c_str()), - DNSMessageFORMERR); -} - -// NSEC3 bitmaps can be empty -TEST_F(NSEC3BitmapTest, emptyMap) { - // Read wire data wit an empty NSEC3 bitmap. This should succeed. - vector<uint8_t> data; - UnitTestUtil::readWireData((this->getWireFilePrefix() + - "fromWire16.wire").c_str(), data); - InputBuffer buffer(&data[0], data.size()); - const uint16_t rdlen = buffer.readUint16(); - const generic::NSEC3 empty_nsec3 = - dynamic_cast<const generic::NSEC3&>(*createRdata( - RRType::NSEC3(), RRClass::IN(), - buffer, rdlen)); - - // Check the toText() result. - EXPECT_EQ("1 0 1 7373737373 D1K6GQ38D1K6GQ38D1K6GQ38D1K6GQ38", - empty_nsec3.toText()); - - // Check the toWire() result. - OutputBuffer obuffer(0); - obuffer.writeUint16(rdlen); - empty_nsec3.toWire(obuffer); - matchWireData(&data[0], data.size(), - obuffer.getData(), obuffer.getLength()); - - // Same for MessageRenderer. - obuffer.clear(); - MessageRenderer renderer; - renderer.writeUint16(rdlen); - empty_nsec3.toWire(renderer); - matchWireData(&data[0], data.size(), - renderer.getData(), renderer.getLength()); -} - -} |