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// Copyright (C) 2010-2015 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 <string>
#include <exceptions/exceptions.h>
#include <util/buffer.h>
#include <dns/messagerenderer.h>
#include <dns/rdata.h>
#include <dns/rdataclass.h>
#include <dns/rrclass.h>
#include <dns/rrtype.h>
#include <gtest/gtest.h>
#include <dns/tests/unittest_util.h>
#include <dns/tests/rdata_unittest.h>
#include <util/unittests/wiredata.h>
using namespace std;
using namespace isc;
using namespace isc::dns;
using namespace isc::util;
using namespace isc::dns::rdata;
using isc::UnitTestUtil;
using isc::util::unittests::matchWireData;
namespace {
class Rdata_NSEC3PARAM_Test : public RdataTest {
protected:
Rdata_NSEC3PARAM_Test() :
nsec3param_txt("1 1 1 D399EAAB"),
nsec3param_nosalt_txt("1 1 1 -"),
rdata_nsec3param(nsec3param_txt)
{}
void checkFromText_None(const string& rdata_str) {
checkFromText<generic::NSEC3PARAM, isc::Exception, isc::Exception>(
rdata_str, rdata_nsec3param, false, false);
}
void checkFromText_InvalidText(const string& rdata_str) {
checkFromText<generic::NSEC3PARAM, InvalidRdataText, InvalidRdataText>(
rdata_str, rdata_nsec3param, true, true);
}
void checkFromText_BadValue(const string& rdata_str) {
checkFromText<generic::NSEC3PARAM, BadValue, BadValue>(
rdata_str, rdata_nsec3param, true, true);
}
void checkFromText_LexerError(const string& rdata_str) {
checkFromText
<generic::NSEC3PARAM, InvalidRdataText, MasterLexer::LexerError>(
rdata_str, rdata_nsec3param, true, true);
}
void checkFromText_BadString(const string& rdata_str,
const generic::NSEC3PARAM& rdata)
{
checkFromText
<generic::NSEC3PARAM, InvalidRdataText, isc::Exception>(
rdata_str, rdata, true, false);
}
const string nsec3param_txt;
const string nsec3param_nosalt_txt;
const generic::NSEC3PARAM rdata_nsec3param;
};
TEST_F(Rdata_NSEC3PARAM_Test, fromText) {
// Empty salt is okay.
EXPECT_EQ(0, generic::NSEC3PARAM(nsec3param_nosalt_txt).getSalt().size());
// Salt is missing.
checkFromText_LexerError("1 1 1");
// Salt has whitespace within. This only fails in the string
// constructor, as the lexer constructor stops reading at the end of
// its RDATA.
const generic::NSEC3PARAM rdata_nsec3param2("1 1 1 D399");
checkFromText_BadString("1 1 1 D399 EAAB", rdata_nsec3param2);
// Hash algorithm out of range.
checkFromText_InvalidText("256 1 1 D399EAAB");
// Flags out of range.
checkFromText_InvalidText("1 256 1 D399EAAB");
// Iterations out of range.
checkFromText_InvalidText("1 1 65536 D399EAAB");
// Bad hex sequence
checkFromText_BadValue("1 1 256 D399EAABZOO");
// String instead of number
checkFromText_LexerError("foo 1 256 D399EAAB");
checkFromText_LexerError("1 foo 256 D399EAAB");
checkFromText_LexerError("1 1 foo D399EAAB");
// Trailing garbage. This should cause only the string constructor
// to fail, but the lexer constructor must be able to continue
// parsing from it.
checkFromText_BadString("1 1 1 D399EAAB ; comment\n"
"1 1 1 D399EAAB", rdata_nsec3param);
}
TEST_F(Rdata_NSEC3PARAM_Test, toText) {
EXPECT_EQ(nsec3param_txt, rdata_nsec3param.toText());
// Garbage space at the end should be ok. RFC5155 only forbids
// whitespace within the salt field, but any whitespace afterwards
// should be fine.
EXPECT_NO_THROW(generic::NSEC3PARAM("1 1 1 D399EAAB "));
// Hash algorithm in range.
EXPECT_NO_THROW(generic::NSEC3PARAM("255 1 1 D399EAAB"));
// Flags in range.
EXPECT_NO_THROW(generic::NSEC3PARAM("1 255 1 D399EAAB"));
// Iterations in range.
EXPECT_NO_THROW(generic::NSEC3PARAM("1 1 65535 D399EAAB"));
}
TEST_F(Rdata_NSEC3PARAM_Test, createFromWire) {
EXPECT_EQ(0, rdata_nsec3param.compare(
*rdataFactoryFromFile(RRType::NSEC3PARAM(), RRClass::IN(),
"rdata_nsec3param_fromWire1")));
// Short buffer cases. The data is valid NSEC3PARAM RDATA, but the buffer
// is trimmed at the end. All cases should result in an exception from
// the buffer class.
vector<uint8_t> data;
UnitTestUtil::readWireData("rdata_nsec3param_fromWire1", data);
const uint16_t rdlen = (data.at(0) << 8) + data.at(1);
for (int i = 0; i < rdlen; ++i) {
// intentionally construct a short buffer
InputBuffer b(&data[0] + 2, i);
EXPECT_THROW(createRdata(RRType::NSEC3PARAM(), RRClass::IN(), b, 9),
InvalidBufferPosition);
}
}
TEST_F(Rdata_NSEC3PARAM_Test, createFromLexer) {
EXPECT_EQ(0, rdata_nsec3param.compare(
*test::createRdataUsingLexer(RRType::NSEC3PARAM(), RRClass::IN(),
nsec3param_txt)));
// empty salt is also okay.
const generic::NSEC3PARAM rdata_nosalt_nsec3param(nsec3param_nosalt_txt);
EXPECT_EQ(0, rdata_nosalt_nsec3param.compare(
*test::createRdataUsingLexer(RRType::NSEC3PARAM(), RRClass::IN(),
nsec3param_nosalt_txt)));
}
TEST_F(Rdata_NSEC3PARAM_Test, toWireRenderer) {
renderer.skip(2);
rdata_nsec3param.toWire(renderer);
vector<unsigned char> data;
UnitTestUtil::readWireData("rdata_nsec3param_fromWire1", data);
matchWireData(&data[2], data.size() - 2,
static_cast<const uint8_t *>(renderer.getData()) + 2,
renderer.getLength() - 2);
}
TEST_F(Rdata_NSEC3PARAM_Test, toWireBuffer) {
rdata_nsec3param.toWire(obuffer);
vector<unsigned char> data;
UnitTestUtil::readWireData("rdata_nsec3param_fromWire1", data);
matchWireData(&data[2], data.size() - 2,
obuffer.getData(), obuffer.getLength());
}
TEST_F(Rdata_NSEC3PARAM_Test, getHashAlg) {
EXPECT_EQ(1, rdata_nsec3param.getHashalg());
}
TEST_F(Rdata_NSEC3PARAM_Test, getFlags) {
EXPECT_EQ(1, rdata_nsec3param.getFlags());
}
TEST_F(Rdata_NSEC3PARAM_Test, assign) {
generic::NSEC3PARAM other_nsec3param("1 1 1 -");
other_nsec3param = rdata_nsec3param;
EXPECT_EQ(0, rdata_nsec3param.compare(other_nsec3param));
}
TEST_F(Rdata_NSEC3PARAM_Test, compare) {
// trivial case: self equivalence
EXPECT_EQ(0, generic::NSEC3PARAM(nsec3param_txt).
compare(generic::NSEC3PARAM(nsec3param_txt)));
EXPECT_EQ(0, generic::NSEC3PARAM("1 1 1 -").
compare(generic::NSEC3PARAM("1 1 1 -")));
// comparison attempt between incompatible RR types should be rejected
EXPECT_THROW(generic::NSEC3PARAM(nsec3param_txt).compare(*rdata_nomatch),
bad_cast);
}
}
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