config_parser_unittest.cc 28.9 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
// Copyright (C) 2012 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.

#include <config.h>
16 17 18 19 20 21 22 23

#include <config/ccsession.h>
#include <dhcp/libdhcp++.h>
#include <dhcp/option6_ia.h>
#include <dhcp6/config_parser.h>
#include <dhcp6/dhcp6_srv.h>
#include <dhcpsrv/cfgmgr.h>
#include <dhcpsrv/subnet.h>
24

25
#include <boost/foreach.hpp>
26
#include <gtest/gtest.h>
27

28 29 30 31
#include <fstream>
#include <iostream>
#include <sstream>

32 33 34 35 36 37 38 39 40 41 42 43 44
#include <arpa/inet.h>

using namespace std;
using namespace isc;
using namespace isc::dhcp;
using namespace isc::asiolink;
using namespace isc::data;
using namespace isc::config;

namespace {

class Dhcp6ParserTest : public ::testing::Test {
public:
Stephen Morris's avatar
Stephen Morris committed
45 46
    Dhcp6ParserTest() :rcode_(-1), srv_(0) {
        // srv_(0) means to not open any sockets. We don't want to
47 48
        // deal with sockets here, just check if configuration handling
        // is sane.
49 50 51
    }

    ~Dhcp6ParserTest() {
52 53
        // Reset configuration database after each test.
        resetConfiguration();
54 55
    };

56 57 58 59 60 61 62 63 64 65 66
    /// @brief Create the simple configuration with single option.
    ///
    /// This function allows to set one of the parameters that configure
    /// option value. These parameters are: "name", "code" and "data".
    ///
    /// @param param_value string holiding option parameter value to be
    /// injected into the configuration string.
    /// @param parameter name of the parameter to be configured with
    /// param value.
    std::string createConfigWithOption(const std::string& param_value,
                                       const std::string& parameter) {
67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83
        std::map<std::string, std::string> params;
        if (parameter == "name") {
            params["name"] = param_value;
            params["code"] = "80";
            params["data"] = "AB CDEF0105";
        } else if (parameter == "code") {
            params["name"] = "option_foo";
            params["code"] = param_value;
            params["data"] = "AB CDEF0105";
        } else if (parameter == "data") {
            params["name"] = "option_foo";
            params["code"] = "80";
            params["data"] = param_value;
        }
        return (createConfigWithOption(params));
    }

Mukund Sivaraman's avatar
Mukund Sivaraman committed
84 85 86
    std::string createConfigWithOption(const std::map<std::string,
                                       std::string>& params)
    {
87 88 89 90 91 92 93 94 95
        std::ostringstream stream;
        stream << "{ \"interface\": [ \"all\" ],"
            "\"preferred-lifetime\": 3000,"
            "\"rebind-timer\": 2000, "
            "\"renew-timer\": 1000, "
            "\"subnet6\": [ { "
            "    \"pool\": [ \"2001:db8:1::/80\" ],"
            "    \"subnet\": \"2001:db8:1::/64\", "
            "    \"option-data\": [ {";
96 97 98 99 100 101 102 103 104 105 106 107 108 109 110
        bool first = true;
        typedef std::pair<std::string, std::string> ParamPair;
        BOOST_FOREACH(ParamPair param, params) {
            if (!first) {
                stream << ", ";
            } else {
                first = false;
            }
            if (param.first == "name") {
                stream << "\"name\": \"" << param.second << "\"";
            } else if (param.first == "code") {
                stream << "\"code\": " << param.second << "";
            } else if (param.first == "data") {
                stream << "\"data\": \"" << param.second << "\"";
            }
111 112 113 114 115 116 117 118
        }
        stream <<
            "        } ]"
            " } ],"
            "\"valid-lifetime\": 4000 }";
        return (stream.str());
    }

119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138
    /// @brief Reset configuration database.
    ///
    /// This function resets configuration data base by
    /// removing all subnets and option-data. Reset must
    /// be performed after each test to make sure that
    /// contents of the database do not affect result of
    /// subsequent tests.
    void resetConfiguration() {
        ConstElementPtr status;

        string config = "{ \"interface\": [ \"all\" ],"
            "\"preferred-lifetime\": 3000,"
            "\"rebind-timer\": 2000, "
            "\"renew-timer\": 1000, "
            "\"valid-lifetime\": 4000, "
            "\"subnet6\": [ ], "
            "\"option-data\": [ ] }";

        try {
            ElementPtr json = Element::fromJSON(config);
139
            status = configureDhcp6Server(srv_, json);
140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163
        } catch (const std::exception& ex) {
            FAIL() << "Fatal error: unable to reset configuration database"
                   << " after the test. The following configuration was used"
                   << " to reset database: " << std::endl
                   << config << std::endl
                   << " and the following error message was returned:"
                   << ex.what() << std::endl;
        }


        // returned value should be 0 (configuration success)
        if (!status) {
            FAIL() << "Fatal error: unable to reset configuration database"
                   << " after the test. Configuration function returned"
                   << " NULL pointer" << std::endl;
        }
        comment_ = parseAnswer(rcode_, status);
        if (rcode_ != 0) {
            FAIL() << "Fatal error: unable to reset configuration database"
                   << " after the test. Configuration function returned"
                   << " error code " << rcode_ << std::endl;
        }
    }

164 165 166 167 168 169 170 171 172 173 174 175 176 177 178
    /// @brief Test invalid option parameter value.
    ///
    /// This test function constructs the simple configuration
    /// string and injects invalid option configuration into it.
    /// It expects that parser will fail with provided option code.
    ///
    /// @param param_value string holding invalid option parameter value
    /// to be injected into configuration string.
    /// @param parameter name of the parameter to be configured with
    /// param_value (can be any of "name", "code", "data")
    void testInvalidOptionParam(const std::string& param_value,
                                const std::string& parameter) {
        ConstElementPtr x;
        std::string config = createConfigWithOption(param_value, parameter);
        ElementPtr json = Element::fromJSON(config);
Stephen Morris's avatar
Stephen Morris committed
179
        EXPECT_NO_THROW(x = configureDhcp6Server(srv_, json));
180 181 182 183 184
        ASSERT_TRUE(x);
        comment_ = parseAnswer(rcode_, x);
        ASSERT_EQ(1, rcode_);
    }

185 186 187 188 189 190 191
    /// @brief Test option against given code and data.
    ///
    /// @param option_desc option descriptor that carries the option to
    /// be tested.
    /// @param expected_code expected code of the option.
    /// @param expected_data expected data in the option.
    /// @param expected_data_len length of the reference data.
192 193
    /// @param extra_data if true extra data is allowed in an option
    /// after tested data.
194 195
    void testOption(const Subnet::OptionDescriptor& option_desc,
                    uint16_t expected_code, const uint8_t* expected_data,
196 197
                    size_t expected_data_len,
                    bool extra_data = false) {
198 199 200 201 202 203 204 205 206 207 208
        // Check if option descriptor contains valid option pointer.
        ASSERT_TRUE(option_desc.option);
        // Verify option type.
        EXPECT_EQ(expected_code, option_desc.option->getType());
        // We may have many different option types being created. Some of them
        // have dedicated classes derived from Option class. In such case if
        // we want to verify the option contents against expected_data we have
        // to prepare raw buffer with the contents of the option. The easiest
        // way is to call pack() which will prepare on-wire data.
        util::OutputBuffer buf(option_desc.option->getData().size());
        option_desc.option->pack(buf);
209 210 211 212 213 214 215 216 217 218 219
        if (extra_data) {
            // The length of the buffer must be at least equal to size of the
            // reference data but it can sometimes be greater than that. This is
            // because some options carry suboptions that increase the overall
            // length.
            ASSERT_GE(buf.getLength() - option_desc.option->getHeaderLen(),
                      expected_data_len);
        } else {
            ASSERT_EQ(buf.getLength() - option_desc.option->getHeaderLen(),
                      expected_data_len);
        }
220 221 222 223 224
        // Verify that the data is correct. However do not verify suboptions.
        const uint8_t* data = static_cast<const uint8_t*>(buf.getData());
        EXPECT_TRUE(memcmp(expected_data, data, expected_data_len));
    }

Stephen Morris's avatar
Stephen Morris committed
225
    Dhcpv6Srv srv_;
226 227 228 229 230

    int rcode_;
    ConstElementPtr comment_;
};

231 232 233
// Goal of this test is a verification if a very simple config update
// with just a bumped version number. That's the simplest possible
// config update.
234 235 236 237
TEST_F(Dhcp6ParserTest, version) {

    ConstElementPtr x;

Stephen Morris's avatar
Stephen Morris committed
238
    EXPECT_NO_THROW(x = configureDhcp6Server(srv_,
239 240 241 242 243 244 245 246
                    Element::fromJSON("{\"version\": 0}")));

    // returned value must be 0 (configuration accepted)
    ASSERT_TRUE(x);
    comment_ = parseAnswer(rcode_, x);
    EXPECT_EQ(0, rcode_);
}

247 248
/// The goal of this test is to verify that the code accepts only
/// valid commands and malformed or unsupported parameters are rejected.
249
TEST_F(Dhcp6ParserTest, bogusCommand) {
250 251 252

    ConstElementPtr x;

Stephen Morris's avatar
Stephen Morris committed
253
    EXPECT_NO_THROW(x = configureDhcp6Server(srv_,
254 255 256 257 258 259 260 261
                    Element::fromJSON("{\"bogus\": 5}")));

    // returned value must be 1 (configuration parse error)
    ASSERT_TRUE(x);
    comment_ = parseAnswer(rcode_, x);
    EXPECT_EQ(1, rcode_);
}

262 263 264
/// The goal of this test is to verify if wrongly defined subnet will
/// be rejected. Properly defined subnet must include at least one
/// pool definition.
265
TEST_F(Dhcp6ParserTest, emptySubnet) {
266

267
    ConstElementPtr status;
268

Stephen Morris's avatar
Stephen Morris committed
269
    EXPECT_NO_THROW(status = configureDhcp6Server(srv_,
270 271 272 273 274 275 276
                    Element::fromJSON("{ \"interface\": [ \"all\" ],"
                                      "\"preferred-lifetime\": 3000,"
                                      "\"rebind-timer\": 2000, "
                                      "\"renew-timer\": 1000, "
                                      "\"subnet6\": [  ], "
                                      "\"valid-lifetime\": 4000 }")));

277 278 279
    // returned value should be 0 (success)
    ASSERT_TRUE(status);
    comment_ = parseAnswer(rcode_, status);
280 281 282
    EXPECT_EQ(0, rcode_);
}

283 284
/// The goal of this test is to verify if defined subnet uses global
/// parameter timer definitions.
285
TEST_F(Dhcp6ParserTest, subnetGlobalDefaults) {
286

287
    ConstElementPtr status;
288 289 290 291 292 293 294 295 296 297 298 299 300

    string config = "{ \"interface\": [ \"all\" ],"
        "\"preferred-lifetime\": 3000,"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet6\": [ { "
        "    \"pool\": [ \"2001:db8:1::1 - 2001:db8:1::ffff\" ],"
        "    \"subnet\": \"2001:db8:1::/64\" } ],"
        "\"valid-lifetime\": 4000 }";
    cout << config << endl;

    ElementPtr json = Element::fromJSON(config);

Stephen Morris's avatar
Stephen Morris committed
301
    EXPECT_NO_THROW(status = configureDhcp6Server(srv_, json));
302

303 304 305
    // check if returned status is OK
    ASSERT_TRUE(status);
    comment_ = parseAnswer(rcode_, status);
306 307
    EXPECT_EQ(0, rcode_);

308 309
    // Now check if the configuration was indeed handled and we have
    // expected pool configured.
310 311 312 313 314 315 316 317
    Subnet6Ptr subnet = CfgMgr::instance().getSubnet6(IOAddress("2001:db8:1::5"));
    ASSERT_TRUE(subnet);
    EXPECT_EQ(1000, subnet->getT1());
    EXPECT_EQ(2000, subnet->getT2());
    EXPECT_EQ(3000, subnet->getPreferred());
    EXPECT_EQ(4000, subnet->getValid());
}

318 319
// This test checks if it is possible to override global values
// on a per subnet basis.
320
TEST_F(Dhcp6ParserTest, subnetLocal) {
321

322
    ConstElementPtr status;
323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339

    string config = "{ \"interface\": [ \"all\" ],"
        "\"preferred-lifetime\": 3000,"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet6\": [ { "
        "    \"pool\": [ \"2001:db8:1::1 - 2001:db8:1::ffff\" ],"
        "    \"renew-timer\": 1, "
        "    \"rebind-timer\": 2, "
        "    \"preferred-lifetime\": 3,"
        "    \"valid-lifetime\": 4,"
        "    \"subnet\": \"2001:db8:1::/64\" } ],"
        "\"valid-lifetime\": 4000 }";
    cout << config << endl;

    ElementPtr json = Element::fromJSON(config);

Stephen Morris's avatar
Stephen Morris committed
340
    EXPECT_NO_THROW(status = configureDhcp6Server(srv_, json));
341

342 343 344
    // returned value should be 0 (configuration success)
    ASSERT_TRUE(status);
    comment_ = parseAnswer(rcode_, status);
345 346 347 348 349 350 351 352 353 354
    EXPECT_EQ(0, rcode_);

    Subnet6Ptr subnet = CfgMgr::instance().getSubnet6(IOAddress("2001:db8:1::5"));
    ASSERT_TRUE(subnet);
    EXPECT_EQ(1, subnet->getT1());
    EXPECT_EQ(2, subnet->getT2());
    EXPECT_EQ(3, subnet->getPreferred());
    EXPECT_EQ(4, subnet->getValid());
}

355 356
// Test verifies that a subnet with pool values that do not belong to that
// pool are rejected.
357
TEST_F(Dhcp6ParserTest, poolOutOfSubnet) {
358

359
    ConstElementPtr status;
360 361 362 363 364 365 366 367 368 369 370 371 372

    string config = "{ \"interface\": [ \"all\" ],"
        "\"preferred-lifetime\": 3000,"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet6\": [ { "
        "    \"pool\": [ \"4001:db8:1::/80\" ],"
        "    \"subnet\": \"2001:db8:1::/64\" } ],"
        "\"valid-lifetime\": 4000 }";
    cout << config << endl;

    ElementPtr json = Element::fromJSON(config);

Stephen Morris's avatar
Stephen Morris committed
373
    EXPECT_NO_THROW(status = configureDhcp6Server(srv_, json));
374 375 376

    // returned value must be 2 (values error)
    // as the pool does not belong to that subnet
377 378
    ASSERT_TRUE(status);
    comment_ = parseAnswer(rcode_, status);
379 380 381
    EXPECT_EQ(2, rcode_);
}

382 383 384
// Goal of this test is to verify if pools can be defined
// using prefix/length notation. There is no separate test for min-max
// notation as it was tested in several previous tests.
385
TEST_F(Dhcp6ParserTest, poolPrefixLen) {
386 387 388 389 390 391 392 393 394 395 396 397 398 399 400

    ConstElementPtr x;

    string config = "{ \"interface\": [ \"all\" ],"
        "\"preferred-lifetime\": 3000,"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet6\": [ { "
        "    \"pool\": [ \"2001:db8:1::/80\" ],"
        "    \"subnet\": \"2001:db8:1::/64\" } ],"
        "\"valid-lifetime\": 4000 }";
    cout << config << endl;

    ElementPtr json = Element::fromJSON(config);

Stephen Morris's avatar
Stephen Morris committed
401
    EXPECT_NO_THROW(x = configureDhcp6Server(srv_, json));
402 403 404 405 406 407 408 409 410 411 412 413 414 415

    // returned value must be 1 (configuration parse error)
    ASSERT_TRUE(x);
    comment_ = parseAnswer(rcode_, x);
    EXPECT_EQ(0, rcode_);

    Subnet6Ptr subnet = CfgMgr::instance().getSubnet6(IOAddress("2001:db8:1::5"));
    ASSERT_TRUE(subnet);
    EXPECT_EQ(1000, subnet->getT1());
    EXPECT_EQ(2000, subnet->getT2());
    EXPECT_EQ(3000, subnet->getPreferred());
    EXPECT_EQ(4000, subnet->getValid());
}

416 417 418
// Goal of this test is to verify that global option
// data is configured for the subnet if the subnet
// configuration does not include options configuration.
419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442
TEST_F(Dhcp6ParserTest, optionDataDefaults) {
    ConstElementPtr x;
    string config = "{ \"interface\": [ \"all\" ],"
        "\"preferred-lifetime\": 3000,"
        "\"rebind-timer\": 2000,"
        "\"renew-timer\": 1000,"
        "\"option-data\": [ {"
        "    \"name\": \"option_foo\","
        "    \"code\": 100,"
        "    \"data\": \"AB CDEF0105\""
        " },"
        " {"
        "    \"name\": \"option_foo2\","
        "    \"code\": 101,"
        "    \"data\": \"01\""
        " } ],"
        "\"subnet6\": [ { "
        "    \"pool\": [ \"2001:db8:1::/80\" ],"
        "    \"subnet\": \"2001:db8:1::/64\""
        " } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json = Element::fromJSON(config);

Stephen Morris's avatar
Stephen Morris committed
443
    EXPECT_NO_THROW(x = configureDhcp6Server(srv_, json));
444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476
    ASSERT_TRUE(x);
    comment_ = parseAnswer(rcode_, x);
    ASSERT_EQ(0, rcode_);

    Subnet6Ptr subnet = CfgMgr::instance().getSubnet6(IOAddress("2001:db8:1::5"));
    ASSERT_TRUE(subnet);
    const Subnet::OptionContainer& options = subnet->getOptions();
    ASSERT_EQ(2, options.size());

    // Get the search index. Index #1 is to search using option code.
    const Subnet::OptionContainerTypeIndex& idx = options.get<1>();

    // Get the options for specified index. Expecting one option to be
    // returned but in theory we may have multiple options with the same
    // code so we get the range.
    std::pair<Subnet::OptionContainerTypeIndex::const_iterator,
              Subnet::OptionContainerTypeIndex::const_iterator> range =
        idx.equal_range(100);
    // Expect single option with the code equal to 100.
    ASSERT_EQ(1, std::distance(range.first, range.second));
    const uint8_t foo_expected[] = {
        0xAB, 0xCD, 0xEF, 0x01, 0x05
    };
    // Check if option is valid in terms of code and carried data.
    testOption(*range.first, 100, foo_expected, sizeof(foo_expected));

    range = idx.equal_range(101);
    ASSERT_EQ(1, std::distance(range.first, range.second));
    // Do another round of testing with second option.
    const uint8_t foo2_expected[] = {
        0x01
    };
    testOption(*range.first, 101, foo2_expected, sizeof(foo2_expected));
477 478 479

    // Check that options with other option codes are not returned.
    for (uint16_t code = 102; code < 110; ++code) {
480
        range = idx.equal_range(code);
481 482
        EXPECT_EQ(0, std::distance(range.first, range.second));
    }
483 484
}

485 486 487 488
// Goal of this test is to verify options configuration
// for a single subnet. In particular this test checks
// that local options configuration overrides global
// option setting.
489
TEST_F(Dhcp6ParserTest, optionDataInSingleSubnet) {
490 491 492 493 494
    ConstElementPtr x;
    string config = "{ \"interface\": [ \"all\" ],"
        "\"preferred-lifetime\": 3000,"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
495 496 497 498 499
        "\"option-data\": [ {"
        "      \"name\": \"option_foo\","
        "      \"code\": 100,"
        "      \"data\": \"AB\""
        " } ],"
500 501 502
        "\"subnet6\": [ { "
        "    \"pool\": [ \"2001:db8:1::/80\" ],"
        "    \"subnet\": \"2001:db8:1::/64\", "
503
        "    \"option-data\": [ {"
504 505
        "          \"name\": \"option_foo\","
        "          \"code\": 100,"
506
        "          \"data\": \"AB CDEF0105\""
507 508 509 510
        "        },"
        "        {"
        "          \"name\": \"option_foo2\","
        "          \"code\": 101,"
511
        "          \"data\": \"01\""
512
        "        } ]"
513 514 515 516 517
        " } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json = Element::fromJSON(config);

Stephen Morris's avatar
Stephen Morris committed
518
    EXPECT_NO_THROW(x = configureDhcp6Server(srv_, json));
519
    ASSERT_TRUE(x);
520
    comment_ = parseAnswer(rcode_, x);
521
    ASSERT_EQ(0, rcode_);
522 523 524 525 526

    Subnet6Ptr subnet = CfgMgr::instance().getSubnet6(IOAddress("2001:db8:1::5"));
    ASSERT_TRUE(subnet);
    const Subnet::OptionContainer& options = subnet->getOptions();
    ASSERT_EQ(2, options.size());
527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551

    // Get the search index. Index #1 is to search using option code.
    const Subnet::OptionContainerTypeIndex& idx = options.get<1>();

    // Get the options for specified index. Expecting one option to be
    // returned but in theory we may have multiple options with the same
    // code so we get the range.
    std::pair<Subnet::OptionContainerTypeIndex::const_iterator,
              Subnet::OptionContainerTypeIndex::const_iterator> range =
        idx.equal_range(100);
    // Expect single option with the code equal to 100.
    ASSERT_EQ(1, std::distance(range.first, range.second));
    const uint8_t foo_expected[] = {
        0xAB, 0xCD, 0xEF, 0x01, 0x05
    };
    // Check if option is valid in terms of code and carried data.
    testOption(*range.first, 100, foo_expected, sizeof(foo_expected));

    range = idx.equal_range(101);
    ASSERT_EQ(1, std::distance(range.first, range.second));
    // Do another round of testing with second option.
    const uint8_t foo2_expected[] = {
        0x01
    };
    testOption(*range.first, 101, foo2_expected, sizeof(foo2_expected));
552 553
}

554 555
// Goal of this test is to verify options configuration
// for multiple subnets.
556
TEST_F(Dhcp6ParserTest, optionDataInMultipleSubnets) {
557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583
    ConstElementPtr x;
    string config = "{ \"interface\": [ \"all\" ],"
        "\"preferred-lifetime\": 3000,"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet6\": [ { "
        "    \"pool\": [ \"2001:db8:1::/80\" ],"
        "    \"subnet\": \"2001:db8:1::/64\", "
        "    \"option-data\": [ {"
        "          \"name\": \"option_foo\","
        "          \"code\": 100,"
        "          \"data\": \"0102030405060708090A\""
        "        } ]"
        " },"
        " {"
        "    \"pool\": [ \"2001:db8:2::/80\" ],"
        "    \"subnet\": \"2001:db8:2::/64\", "
        "    \"option-data\": [ {"
        "          \"name\": \"option_foo2\","
        "          \"code\": 101,"
        "          \"data\": \"FFFEFDFCFB\""
        "        } ]"
        " } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json = Element::fromJSON(config);

Stephen Morris's avatar
Stephen Morris committed
584
    EXPECT_NO_THROW(x = configureDhcp6Server(srv_, json));
585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629
    ASSERT_TRUE(x);
    comment_ = parseAnswer(rcode_, x);
    ASSERT_EQ(0, rcode_);

    Subnet6Ptr subnet1 = CfgMgr::instance().getSubnet6(IOAddress("2001:db8:1::5"));
    ASSERT_TRUE(subnet1);
    const Subnet::OptionContainer& options1 = subnet1->getOptions();
    ASSERT_EQ(1, options1.size());

    // Get the search index. Index #1 is to search using option code.
    const Subnet::OptionContainerTypeIndex& idx1 = options1.get<1>();

    // Get the options for specified index. Expecting one option to be
    // returned but in theory we may have multiple options with the same
    // code so we get the range.
    std::pair<Subnet::OptionContainerTypeIndex::const_iterator,
              Subnet::OptionContainerTypeIndex::const_iterator> range1 =
        idx1.equal_range(100);
    // Expect single option with the code equal to 100.
    ASSERT_EQ(1, std::distance(range1.first, range1.second));
    const uint8_t foo_expected[] = {
        0x01, 0x02, 0x03, 0x04, 0x05,
        0x06, 0x07, 0x08, 0x09, 0x0A
    };
    // Check if option is valid in terms of code and carried data.
    testOption(*range1.first, 100, foo_expected, sizeof(foo_expected));

    // Test another subnet in the same way.
    Subnet6Ptr subnet2 = CfgMgr::instance().getSubnet6(IOAddress("2001:db8:2::4"));
    ASSERT_TRUE(subnet2);
    const Subnet::OptionContainer& options2 = subnet2->getOptions();
    ASSERT_EQ(1, options2.size());

    const Subnet::OptionContainerTypeIndex& idx2 = options2.get<1>();
    std::pair<Subnet::OptionContainerTypeIndex::const_iterator,
              Subnet::OptionContainerTypeIndex::const_iterator> range2 =
        idx2.equal_range(101);
    ASSERT_EQ(1, std::distance(range2.first, range2.second));

    const uint8_t foo2_expected[] = {
        0xFF, 0xFE, 0xFD, 0xFC, 0xFB
    };
    testOption(*range2.first, 101, foo2_expected, sizeof(foo2_expected));
}

630
// Verify that empty option name is rejected in the configuration.
631 632 633 634 635
TEST_F(Dhcp6ParserTest, optionNameEmpty) {
    // Empty option names not allowed.
    testInvalidOptionParam("", "name");
}

636 637
// Verify that empty option name with spaces is rejected
// in the configuration.
638 639 640 641 642
TEST_F(Dhcp6ParserTest, optionNameSpaces) {
    // Spaces in option names not allowed.
    testInvalidOptionParam("option foo", "name");
}

643
// Verify that negative option code is rejected in the configuration.
644 645 646 647 648
TEST_F(Dhcp6ParserTest, optionCodeNegative) {
    // Check negative option code -4. This should fail too.
    testInvalidOptionParam("-4", "code");
}

649
// Verify that out of bounds option code is rejected in the configuration.
650 651 652 653 654 655 656
TEST_F(Dhcp6ParserTest, optionCodeNonUint16) {
    // The valid option codes are uint16_t values so passing
    // uint16_t maximum value incremented by 1 should result
    // in failure.
    testInvalidOptionParam("65536", "code");
}

657
// Verify that out of bounds option code is rejected in the configuration.
658 659 660 661 662 663
TEST_F(Dhcp6ParserTest, optionCodeHighNonUint16) {
    // Another check for uint16_t overflow but this time
    // let's pass even greater option code value.
    testInvalidOptionParam("70000", "code");
}

664
// Verify that zero option code is rejected in the configuration.
665 666 667 668 669 670
TEST_F(Dhcp6ParserTest, optionCodeZero) {
    // Option code 0 is reserved and should not be accepted
    // by configuration parser.
    testInvalidOptionParam("0", "code");
}

671 672
// Verify that option data which contains non hexadecimal characters
// is rejected by the configuration.
673 674 675 676 677 678
TEST_F(Dhcp6ParserTest, optionDataInvalidChar) {
    // Option code 0 is reserved and should not be accepted
    // by configuration parser.
    testInvalidOptionParam("01020R", "data");
}

679 680
// Verify that option data containins '0x' prefix is rejected
// by the configuration.
681 682 683 684 685 686
TEST_F(Dhcp6ParserTest, optionDataUnexpectedPrefix) {
    // Option code 0 is reserved and should not be accepted
    // by configuration parser.
    testInvalidOptionParam("0x0102", "data");
}

687 688
// Verify that option data consisting od an odd number of
// hexadecimal digits is rejected in the configuration.
689 690 691 692 693 694
TEST_F(Dhcp6ParserTest, optionDataOddLength) {
    // Option code 0 is reserved and should not be accepted
    // by configuration parser.
    testInvalidOptionParam("123", "data");
}

695 696
// Verify that either lower or upper case characters are allowed
// to specify the option data.
697 698 699 700 701
TEST_F(Dhcp6ParserTest, optionDataLowerCase) {
    ConstElementPtr x;
    std::string config = createConfigWithOption("0a0b0C0D", "data");
    ElementPtr json = Element::fromJSON(config);

Stephen Morris's avatar
Stephen Morris committed
702
    EXPECT_NO_THROW(x = configureDhcp6Server(srv_, json));
703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728
    ASSERT_TRUE(x);
    comment_ = parseAnswer(rcode_, x);
    ASSERT_EQ(0, rcode_);

    Subnet6Ptr subnet = CfgMgr::instance().getSubnet6(IOAddress("2001:db8:1::5"));
    ASSERT_TRUE(subnet);
    const Subnet::OptionContainer& options = subnet->getOptions();
    ASSERT_EQ(1, options.size());

    // Get the search index. Index #1 is to search using option code.
    const Subnet::OptionContainerTypeIndex& idx = options.get<1>();

    // Get the options for specified index. Expecting one option to be
    // returned but in theory we may have multiple options with the same
    // code so we get the range.
    std::pair<Subnet::OptionContainerTypeIndex::const_iterator,
              Subnet::OptionContainerTypeIndex::const_iterator> range =
        idx.equal_range(80);
    // Expect single option with the code equal to 100.
    ASSERT_EQ(1, std::distance(range.first, range.second));
    const uint8_t foo_expected[] = {
        0x0A, 0x0B, 0x0C, 0x0D
    };
    // Check if option is valid in terms of code and carried data.
    testOption(*range.first, 80, foo_expected, sizeof(foo_expected));
}
729

730 731 732 733 734 735 736 737 738
// Verify that specific option object is returned for standard
// option which has dedicated option class derived from Option.
TEST_F(Dhcp6ParserTest, stdOptionData) {
    ConstElementPtr x;
    std::map<std::string, std::string> params;
    params["name"] = "OPTION_IA_NA";
    // Option code 3 means OPTION_IA_NA.
    params["code"] = "3";
    params["data"] = "ABCDEF01 02030405 06070809";
739

740 741 742
    std::string config = createConfigWithOption(params);
    ElementPtr json = Element::fromJSON(config);

Stephen Morris's avatar
Stephen Morris committed
743
    EXPECT_NO_THROW(x = configureDhcp6Server(srv_, json));
744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783
    ASSERT_TRUE(x);
    comment_ = parseAnswer(rcode_, x);
    ASSERT_EQ(0, rcode_);

    Subnet6Ptr subnet = CfgMgr::instance().getSubnet6(IOAddress("2001:db8:1::5"));
    ASSERT_TRUE(subnet);
    const Subnet::OptionContainer& options = subnet->getOptions();
    ASSERT_EQ(1, options.size());

    // Get the search index. Index #1 is to search using option code.
    const Subnet::OptionContainerTypeIndex& idx = options.get<1>();

    // Get the options for specified index. Expecting one option to be
    // returned but in theory we may have multiple options with the same
    // code so we get the range.
    std::pair<Subnet::OptionContainerTypeIndex::const_iterator,
              Subnet::OptionContainerTypeIndex::const_iterator> range =
        idx.equal_range(D6O_IA_NA);
    // Expect single option with the code equal to IA_NA option code.
    ASSERT_EQ(1, std::distance(range.first, range.second));
    // The actual pointer to the option is held in the option field
    // in the structure returned.
    OptionPtr option = range.first->option;
    ASSERT_TRUE(option);
    // Option object returned for here is expected to be Option6IA
    // which is derived from Option. This class is dedicated to
    // represent standard option IA_NA.
    boost::shared_ptr<Option6IA> optionIA =
        boost::dynamic_pointer_cast<Option6IA>(option);
    // If cast is unsuccessful than option returned was of a
    // differnt type than Option6IA. This is wrong.
    ASSERT_TRUE(optionIA);
    // If cast was successful we may use accessors exposed by
    // Option6IA to validate that the content of this option
    // has been set correctly.
    EXPECT_EQ(0xABCDEF01, optionIA->getIAID());
    EXPECT_EQ(0x02030405, optionIA->getT1());
    EXPECT_EQ(0x06070809, optionIA->getT2());
}

784
};