config_parser_unittest.cc 89.1 KB
Newer Older
1
// Copyright (C) 2012-2013 Internet Systems Consortium, Inc. ("ISC")
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
//
// 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>

#include <arpa/inet.h>
#include <gtest/gtest.h>

20
#include <config/ccsession.h>
21 22
#include <dhcp4/dhcp4_srv.h>
#include <dhcp4/config_parser.h>
23
#include <dhcp/option4_addrlst.h>
24 25
#include <dhcp/option_custom.h>
#include <dhcp/option_int.h>
Tomek Mrugalski's avatar
Tomek Mrugalski committed
26
#include <dhcp/docsis3_option_defs.h>
27 28
#include <dhcpsrv/subnet.h>
#include <dhcpsrv/cfgmgr.h>
29 30 31 32
#include <hooks/hooks_manager.h>

#include "marker_file.h"
#include "test_libraries.h"
33

34
#include <boost/foreach.hpp>
35 36
#include <boost/scoped_ptr.hpp>

Tomek Mrugalski's avatar
Tomek Mrugalski committed
37 38 39 40
#include <iostream>
#include <fstream>
#include <sstream>
#include <limits.h>
41 42 43 44

using namespace isc;
using namespace isc::asiolink;
using namespace isc::config;
45 46
using namespace isc::data;
using namespace isc::dhcp;
47
using namespace isc::dhcp::test;
48 49
using namespace isc::hooks;
using namespace std;
50 51 52 53 54 55 56 57 58 59

namespace {

class Dhcp4ParserTest : public ::testing::Test {
public:
    Dhcp4ParserTest()
    :rcode_(-1) {
        // Open port 0 means to not do anything at all. We don't want to
        // deal with sockets here, just check if configuration handling
        // is sane.
60
        srv_.reset(new Dhcpv4Srv(0));
61
        CfgMgr::instance().deleteActiveIfaces();
62 63
    }

64 65 66 67 68 69 70 71 72
    // Check that no hooks libraries are loaded.  This is a pre-condition for
    // a number of tests, so is checked in one place.  As this uses an
    // ASSERT call - and it is not clear from the documentation that Gtest
    // predicates can be used in a constructor - the check is placed in SetUp.
    void SetUp() {
        std::vector<std::string> libraries = HooksManager::getLibraryNames();
        ASSERT_TRUE(libraries.empty());
    }

Tomek Mrugalski's avatar
Tomek Mrugalski committed
73 74
    // Checks if global parameter of name have expected_value
    void checkGlobalUint32(string name, uint32_t expected_value) {
75
        const Uint32StoragePtr uint32_defaults =
76
                                        globalContext()->uint32_values_;
77
        try {
78
            uint32_t actual_value = uint32_defaults->getParam(name);
79 80
            EXPECT_EQ(expected_value, actual_value);
        } catch (DhcpConfigError) {
Tomek Mrugalski's avatar
Tomek Mrugalski committed
81 82 83 84 85
            ADD_FAILURE() << "Expected uint32 with name " << name
                          << " not found";
        }
    }

86
    // Checks if the result of DHCP server configuration has
Tomek Mrugalski's avatar
Tomek Mrugalski committed
87 88 89 90 91 92 93 94
    // expected code (0 for success, other for failures).
    // Also stores result in rcode_ and comment_.
    void checkResult(ConstElementPtr status, int expected_code) {
        ASSERT_TRUE(status);
        comment_ = parseAnswer(rcode_, status);
        EXPECT_EQ(expected_code, rcode_);
    }

95
    ~Dhcp4ParserTest() {
96
        resetConfiguration();
97 98 99 100

        // ... and delete the hooks library marker files if present
        unlink(LOAD_MARKER_FILE);
        unlink(UNLOAD_MARKER_FILE);
101 102
    };

103 104 105
    /// @brief Create the simple configuration with single option.
    ///
    /// This function allows to set one of the parameters that configure
106 107
    /// option value. These parameters are: "name", "code", "data",
    /// "csv-format" and "space".
108
    ///
109
    /// @param param_value string holding option parameter value to be
110 111 112
    /// injected into the configuration string.
    /// @param parameter name of the parameter to be configured with
    /// param value.
113 114
    /// @return configuration string containing custom values of parameters
    /// describing an option.
115 116 117 118 119
    std::string createConfigWithOption(const std::string& param_value,
                                       const std::string& parameter) {
        std::map<std::string, std::string> params;
        if (parameter == "name") {
            params["name"] = param_value;
120 121 122 123 124 125 126
            params["space"] = "dhcp4";
            params["code"] = "56";
            params["data"] = "AB CDEF0105";
            params["csv-format"] = "False";
        } else if (parameter == "space") {
            params["name"] = "dhcp-message";
            params["space"] = param_value;
127 128
            params["code"] = "56";
            params["data"] = "AB CDEF0105";
129
            params["csv-format"] = "False";
130
        } else if (parameter == "code") {
131 132
            params["name"] = "dhcp-message";
            params["space"] = "dhcp4";
133 134
            params["code"] = param_value;
            params["data"] = "AB CDEF0105";
135
            params["csv-format"] = "False";
136
        } else if (parameter == "data") {
137 138
            params["name"] = "dhcp-message";
            params["space"] = "dhcp4";
139 140
            params["code"] = "56";
            params["data"] = param_value;
141 142
            params["csv-format"] = "False";
        } else if (parameter == "csv-format") {
143 144
            params["name"] = "dhcp-message";
            params["space"] = "dhcp4";
145 146 147
            params["code"] = "56";
            params["data"] = "AB CDEF0105";
            params["csv-format"] = param_value;
148 149 150 151
        }
        return (createConfigWithOption(params));
    }

152 153 154 155 156 157 158 159
    /// @brief Create simple configuration with single option.
    ///
    /// This function creates a configuration for a single option with
    /// custom values for all parameters that describe the option.
    ///
    /// @params params map holding parameters and their values.
    /// @return configuration string containing custom values of parameters
    /// describing an option.
160 161
    std::string createConfigWithOption(const std::map<std::string, std::string>& params) {
        std::ostringstream stream;
162
        stream << "{ \"interfaces\": [ \"*\" ],"
163 164 165 166 167 168 169 170 171 172 173 174
            "\"rebind-timer\": 2000, "
            "\"renew-timer\": 1000, "
            "\"subnet4\": [ { "
            "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
            "    \"subnet\": \"192.0.2.0/24\", "
            "    \"option-data\": [ {";
        bool first = true;
        typedef std::pair<std::string, std::string> ParamPair;
        BOOST_FOREACH(ParamPair param, params) {
            if (!first) {
                stream << ", ";
            } else {
175
                // cppcheck-suppress unreadVariable
176 177 178 179
                first = false;
            }
            if (param.first == "name") {
                stream << "\"name\": \"" << param.second << "\"";
180 181
            } else if (param.first == "space") {
                stream << "\"space\": \"" << param.second << "\"";
182 183 184 185
            } else if (param.first == "code") {
                stream << "\"code\": " << param.second << "";
            } else if (param.first == "data") {
                stream << "\"data\": \"" << param.second << "\"";
186 187
            } else if (param.first == "csv-format") {
                stream << "\"csv-format\": " << param.second;
188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217
            }
        }
        stream <<
            "        } ]"
            " } ],"
            "\"valid-lifetime\": 4000 }";
        return (stream.str());
    }

    /// @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);
        EXPECT_NO_THROW(x = configureDhcp4Server(*srv_, json));
        ASSERT_TRUE(x);
        comment_ = parseAnswer(rcode_, x);
        ASSERT_EQ(1, rcode_);
    }

218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252
    /// @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.
    /// @param extra_data if true extra data is allowed in an option
    /// after tested data.
    void testOption(const Subnet::OptionDescriptor& option_desc,
                    uint16_t expected_code, const uint8_t* expected_data,
                    size_t expected_data_len,
                    bool extra_data = false) {
        // 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);
        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);
        }
253
        // Verify that the data is correct. Do not verify suboptions and a header.
254
        const uint8_t* data = static_cast<const uint8_t*>(buf.getData());
255 256
        EXPECT_EQ(0, memcmp(expected_data, data + option_desc.option->getHeaderLen(),
                            expected_data_len));
257 258
    }

259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309
    /// @brief Parse and Execute configuration
    ///
    /// Parses a configuration and executes a configuration of the server.
    /// If the operation fails, the current test will register a failure.
    ///
    /// @param config Configuration to parse
    /// @param operation Operation being performed.  In the case of an error,
    ///        the error text will include the string "unable to <operation>.".
    ///
    /// @return true if the configuration succeeded, false if not.  In the
    ///         latter case, a failure will have been added to the current test.
    bool
    executeConfiguration(const std::string& config, const char* operation) {
        ConstElementPtr status;
        try {
            ElementPtr json = Element::fromJSON(config);
            status = configureDhcp4Server(*srv_, json);
        } catch (const std::exception& ex) {
            ADD_FAILURE() << "Unable to " << operation << ". "
                   << "The following configuration was used: " << std::endl
                   << config << std::endl
                   << " and the following error message was returned:"
                   << ex.what() << std::endl;
            return (false);
        }

        // The status object must not be NULL
        if (!status) {
            ADD_FAILURE() << "Unable to " << operation << ". "
                   << "The configuration function returned a null pointer.";
            return (false);
        }

        // Store the answer if we need it.

        // Returned value should be 0 (configuration success)
        comment_ = parseAnswer(rcode_, status);
        if (rcode_ != 0) {
            string reason = "";
            if (comment_) {
                reason = string(" (") + comment_->stringValue() + string(")");
            }
            ADD_FAILURE() << "Unable to " << operation << ". "
                   << "The configuration function returned error code "
                   << rcode_ << reason;
            return (false);
        }

        return (true);
    }

310 311 312 313 314 315 316 317
    /// @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() {
318
        string config = "{ \"interfaces\": [ \"*\" ],"
319
            "\"hooks-libraries\": [ ], "
320 321 322 323
            "\"rebind-timer\": 2000, "
            "\"renew-timer\": 1000, "
            "\"valid-lifetime\": 4000, "
            "\"subnet4\": [ ], "
324
            "\"option-def\": [ ], "
325
            "\"option-data\": [ ] }";
326 327 328
        static_cast<void>(executeConfiguration(config,
                                               "reset configuration database"));
    }
329

330

331 332 333
    boost::scoped_ptr<Dhcpv4Srv> srv_;      // DHCP4 server under test
    int rcode_;                             // Return code from element parsing
    ConstElementPtr comment_;               // Reason for parse fail
334 335 336 337 338 339 340 341 342 343 344 345 346
};

// 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.
TEST_F(Dhcp4ParserTest, version) {

    ConstElementPtr x;

    EXPECT_NO_THROW(x = configureDhcp4Server(*srv_,
                    Element::fromJSON("{\"version\": 0}")));

    // returned value must be 0 (configuration accepted)
Tomek Mrugalski's avatar
Tomek Mrugalski committed
347
    checkResult(x, 0);
348 349 350 351
}

/// The goal of this test is to verify that the code accepts only
/// valid commands and malformed or unsupported parameters are rejected.
Tomek Mrugalski's avatar
Tomek Mrugalski committed
352
TEST_F(Dhcp4ParserTest, bogusCommand) {
353 354 355 356 357 358 359

    ConstElementPtr x;

    EXPECT_NO_THROW(x = configureDhcp4Server(*srv_,
                    Element::fromJSON("{\"bogus\": 5}")));

    // returned value must be 1 (configuration parse error)
Tomek Mrugalski's avatar
Tomek Mrugalski committed
360
    checkResult(x, 1);
361 362 363 364 365
}

/// 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.
Tomek Mrugalski's avatar
Tomek Mrugalski committed
366
TEST_F(Dhcp4ParserTest, emptySubnet) {
367 368 369 370

    ConstElementPtr status;

    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_,
371
                    Element::fromJSON("{ \"interfaces\": [ \"*\" ],"
372 373 374 375 376 377
                                      "\"rebind-timer\": 2000, "
                                      "\"renew-timer\": 1000, "
                                      "\"subnet4\": [  ], "
                                      "\"valid-lifetime\": 4000 }")));

    // returned value should be 0 (success)
Tomek Mrugalski's avatar
Tomek Mrugalski committed
378 379 380 381 382
    checkResult(status, 0);

    checkGlobalUint32("rebind-timer", 2000);
    checkGlobalUint32("renew-timer", 1000);
    checkGlobalUint32("valid-lifetime", 4000);
383 384 385 386
}

/// The goal of this test is to verify if defined subnet uses global
/// parameter timer definitions.
Tomek Mrugalski's avatar
Tomek Mrugalski committed
387
TEST_F(Dhcp4ParserTest, subnetGlobalDefaults) {
388 389 390

    ConstElementPtr status;

391
    string config = "{ \"interfaces\": [ \"*\" ],"
392 393 394 395 396 397 398 399 400 401 402 403
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
        "    \"subnet\": \"192.0.2.0/24\" } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json = Element::fromJSON(config);

    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));

    // check if returned status is OK
Tomek Mrugalski's avatar
Tomek Mrugalski committed
404
    checkResult(status, 0);
405 406 407 408 409 410 411 412

    // Now check if the configuration was indeed handled and we have
    // expected pool configured.
    Subnet4Ptr subnet = CfgMgr::instance().getSubnet4(IOAddress("192.0.2.200"));
    ASSERT_TRUE(subnet);
    EXPECT_EQ(1000, subnet->getT1());
    EXPECT_EQ(2000, subnet->getT2());
    EXPECT_EQ(4000, subnet->getValid());
413 414 415

    // Check that subnet-id is 1
    EXPECT_EQ(1, subnet->getID());
416 417
}

418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477
// Goal of this test is to verify that multiple subnets get unique
// subnet-ids. Also, test checks that it's possible to do reconfiguration
// multiple times.
TEST_F(Dhcp4ParserTest, multipleSubnets) {
    ConstElementPtr x;
    string config = "{ \"interfaces\": [ \"*\" ],"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
        "    \"subnet\": \"192.0.2.0/24\" "
        " },"
        " {"
        "    \"pool\": [ \"192.0.3.101 - 192.0.3.150\" ],"
        "    \"subnet\": \"192.0.3.0/24\" "
        " },"
        " {"
        "    \"pool\": [ \"192.0.4.101 - 192.0.4.150\" ],"
        "    \"subnet\": \"192.0.4.0/24\" "
        " },"
        " {"
        "    \"pool\": [ \"192.0.5.101 - 192.0.5.150\" ],"
        "    \"subnet\": \"192.0.5.0/24\" "
        " } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json = Element::fromJSON(config);

    EXPECT_NO_THROW(x = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(x);
    comment_ = parseAnswer(rcode_, x);
    ASSERT_EQ(0, rcode_);

    int cnt = 0; // Number of reconfigurations

    do {
        ElementPtr json = Element::fromJSON(config);

        EXPECT_NO_THROW(x = configureDhcp4Server(*srv_, json));
        ASSERT_TRUE(x);
        comment_ = parseAnswer(rcode_, x);
        ASSERT_EQ(0, rcode_);

        const Subnet4Collection* subnets = CfgMgr::instance().getSubnets4();
        ASSERT_TRUE(subnets);
        ASSERT_EQ(4, subnets->size()); // We expect 4 subnets

        // Check subnet-ids of each subnet (it should be monotonously increasing)
        EXPECT_EQ(1, subnets->at(0)->getID());
        EXPECT_EQ(2, subnets->at(1)->getID());
        EXPECT_EQ(3, subnets->at(2)->getID());
        EXPECT_EQ(4, subnets->at(3)->getID());

        // Repeat reconfiguration process 10 times and check that the subnet-id
        // is set to the same value. Technically, just two iterations would be
        // sufficient, but it's nice to have a test that exercises reconfiguration
        // a bit.
    } while (++cnt < 10);
}

Tomek Mrugalski's avatar
Tomek Mrugalski committed
478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600
// Goal of this test is to verify that a previously configured subnet can be
// deleted in subsequent reconfiguration.
TEST_F(Dhcp4ParserTest, reconfigureRemoveSubnet) {
    ConstElementPtr x;

    // All four subnets
    string config4 = "{ \"interfaces\": [ \"*\" ],"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
        "    \"subnet\": \"192.0.2.0/24\" "
        " },"
        " {"
        "    \"pool\": [ \"192.0.3.101 - 192.0.3.150\" ],"
        "    \"subnet\": \"192.0.3.0/24\" "
        " },"
        " {"
        "    \"pool\": [ \"192.0.4.101 - 192.0.4.150\" ],"
        "    \"subnet\": \"192.0.4.0/24\" "
        " },"
        " {"
        "    \"pool\": [ \"192.0.5.101 - 192.0.5.150\" ],"
        "    \"subnet\": \"192.0.5.0/24\" "
        " } ],"
        "\"valid-lifetime\": 4000 }";

    // Three subnets (the last one removed)
    string config_first3 = "{ \"interfaces\": [ \"*\" ],"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
        "    \"subnet\": \"192.0.2.0/24\" "
        " },"
        " {"
        "    \"pool\": [ \"192.0.3.101 - 192.0.3.150\" ],"
        "    \"subnet\": \"192.0.3.0/24\" "
        " },"
        " {"
        "    \"pool\": [ \"192.0.4.101 - 192.0.4.150\" ],"
        "    \"subnet\": \"192.0.4.0/24\" "
        " } ],"
        "\"valid-lifetime\": 4000 }";

    // Second subnet removed
    string config_second_removed = "{ \"interfaces\": [ \"*\" ],"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
        "    \"subnet\": \"192.0.2.0/24\" "
        " },"
        " {"
        "    \"pool\": [ \"192.0.4.101 - 192.0.4.150\" ],"
        "    \"subnet\": \"192.0.4.0/24\" "
        " },"
        " {"
        "    \"pool\": [ \"192.0.5.101 - 192.0.5.150\" ],"
        "    \"subnet\": \"192.0.5.0/24\" "
        " } ],"
        "\"valid-lifetime\": 4000 }";

    // CASE 1: Configure 4 subnets, then reconfigure and remove the
    // last one.

    ElementPtr json = Element::fromJSON(config4);
    EXPECT_NO_THROW(x = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(x);
    comment_ = parseAnswer(rcode_, x);
    ASSERT_EQ(0, rcode_);

    const Subnet4Collection* subnets = CfgMgr::instance().getSubnets4();
    ASSERT_TRUE(subnets);
    ASSERT_EQ(4, subnets->size()); // We expect 4 subnets

    // Do the reconfiguration (the last subnet is removed)
    json = Element::fromJSON(config_first3);
    EXPECT_NO_THROW(x = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(x);
    comment_ = parseAnswer(rcode_, x);
    ASSERT_EQ(0, rcode_);

    subnets = CfgMgr::instance().getSubnets4();
    ASSERT_TRUE(subnets);
    ASSERT_EQ(3, subnets->size()); // We expect 3 subnets now (4th is removed)

    // Check subnet-ids of each subnet (it should be monotonously increasing)
    EXPECT_EQ(1, subnets->at(0)->getID());
    EXPECT_EQ(2, subnets->at(1)->getID());
    EXPECT_EQ(3, subnets->at(2)->getID());

    /// CASE 2: Configure 4 subnets, then reconfigure and remove one
    /// from in between (not first, not last)

#if 0
    /// @todo: Uncomment subnet removal test as part of #3281.
    json = Element::fromJSON(config4);
    EXPECT_NO_THROW(x = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(x);
    comment_ = parseAnswer(rcode_, x);
    ASSERT_EQ(0, rcode_);

    // Do reconfiguration
    json = Element::fromJSON(config_second_removed);
    EXPECT_NO_THROW(x = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(x);
    comment_ = parseAnswer(rcode_, x);
    ASSERT_EQ(0, rcode_);

    subnets = CfgMgr::instance().getSubnets4();
    ASSERT_TRUE(subnets);
    ASSERT_EQ(3, subnets->size()); // We expect 4 subnets

    EXPECT_EQ(1, subnets->at(0)->getID());
    // The second subnet (with subnet-id = 2) is no longer there
    EXPECT_EQ(3, subnets->at(1)->getID());
    EXPECT_EQ(4, subnets->at(2)->getID());
#endif

}

/// @todo: implement subnet removal test as part of #3281.
601

602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659
// Checks if the next-server defined as global parameter is taken into
// consideration.
TEST_F(Dhcp4ParserTest, nextServerGlobal) {

    ConstElementPtr status;

    string config = "{ \"interfaces\": [ \"*\" ],"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"next-server\": \"1.2.3.4\", "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
        "    \"subnet\": \"192.0.2.0/24\" } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json = Element::fromJSON(config);

    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));

    // check if returned status is OK
    checkResult(status, 0);

    // Now check if the configuration was indeed handled and we have
    // expected pool configured.
    Subnet4Ptr subnet = CfgMgr::instance().getSubnet4(IOAddress("192.0.2.200"));
    ASSERT_TRUE(subnet);
    EXPECT_EQ("1.2.3.4", subnet->getSiaddr().toText());
}

// Checks if the next-server defined as subnet parameter is taken into
// consideration.
TEST_F(Dhcp4ParserTest, nextServerSubnet) {

    ConstElementPtr status;

    string config = "{ \"interfaces\": [ \"*\" ],"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
        "    \"next-server\": \"1.2.3.4\", "
        "    \"subnet\": \"192.0.2.0/24\" } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json = Element::fromJSON(config);

    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));

    // check if returned status is OK
    checkResult(status, 0);

    // Now check if the configuration was indeed handled and we have
    // expected pool configured.
    Subnet4Ptr subnet = CfgMgr::instance().getSubnet4(IOAddress("192.0.2.200"));
    ASSERT_TRUE(subnet);
    EXPECT_EQ("1.2.3.4", subnet->getSiaddr().toText());
}

Tomek Mrugalski's avatar
Tomek Mrugalski committed
660 661 662 663 664 665 666 667 668 669 670 671
// Test checks several negative scenarios for next-server configuration: bogus
// address, IPv6 adddress and empty string.
TEST_F(Dhcp4ParserTest, nextServerNegative) {

    ConstElementPtr status;

    // Config with junk instead of next-server address
    string config_bogus1 = "{ \"interfaces\": [ \"*\" ],"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
Tomek Mrugalski's avatar
Tomek Mrugalski committed
672 673
        "    \"rebind-timer\": 2000, "
        "    \"renew-timer\": 1000, "
Tomek Mrugalski's avatar
Tomek Mrugalski committed
674 675 676 677 678 679 680 681 682 683
        "    \"next-server\": \"a.b.c.d\", "
        "    \"subnet\": \"192.0.2.0/24\" } ],"
        "\"valid-lifetime\": 4000 }";

    // Config with IPv6 next server address
    string config_bogus2 = "{ \"interfaces\": [ \"*\" ],"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
Tomek Mrugalski's avatar
Tomek Mrugalski committed
684 685
        "    \"rebind-timer\": 2000, "
        "    \"renew-timer\": 1000, "
Tomek Mrugalski's avatar
Tomek Mrugalski committed
686 687 688 689 690 691 692 693 694 695
        "    \"next-server\": \"2001:db8::1\", "
        "    \"subnet\": \"192.0.2.0/24\" } ],"
        "\"valid-lifetime\": 4000 }";

    // Config with empty next server address
    string config_bogus3 = "{ \"interfaces\": [ \"*\" ],"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
Tomek Mrugalski's avatar
Tomek Mrugalski committed
696 697
        "    \"rebind-timer\": 2000, "
        "    \"renew-timer\": 1000, "
Tomek Mrugalski's avatar
Tomek Mrugalski committed
698 699 700 701 702 703
        "    \"next-server\": \"\", "
        "    \"subnet\": \"192.0.2.0/24\" } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json1 = Element::fromJSON(config_bogus1);
    ElementPtr json2 = Element::fromJSON(config_bogus2);
Tomek Mrugalski's avatar
Tomek Mrugalski committed
704
    ElementPtr json3 = Element::fromJSON(config_bogus3);
Tomek Mrugalski's avatar
Tomek Mrugalski committed
705 706 707 708 709 710 711 712 713

    // check if returned status is always a failure
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json1));
    checkResult(status, 1);

    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json2));
    checkResult(status, 1);

    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json3));
Tomek Mrugalski's avatar
Tomek Mrugalski committed
714
    checkResult(status, 0);
Tomek Mrugalski's avatar
Tomek Mrugalski committed
715 716
}

717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746
// Checks if the next-server defined as global value is overridden by subnet
// specific value.
TEST_F(Dhcp4ParserTest, nextServerOverride) {

    ConstElementPtr status;

    string config = "{ \"interfaces\": [ \"*\" ],"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"next-server\": \"192.0.0.1\", "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
        "    \"next-server\": \"1.2.3.4\", "
        "    \"subnet\": \"192.0.2.0/24\" } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json = Element::fromJSON(config);

    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));

    // check if returned status is OK
    checkResult(status, 0);

    // Now check if the configuration was indeed handled and we have
    // expected pool configured.
    Subnet4Ptr subnet = CfgMgr::instance().getSubnet4(IOAddress("192.0.2.200"));
    ASSERT_TRUE(subnet);
    EXPECT_EQ("1.2.3.4", subnet->getSiaddr().toText());
}

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
// Check whether it is possible to configure echo-client-id
TEST_F(Dhcp4ParserTest, echoClientId) {

    ConstElementPtr status;

    string config_false = "{ \"interfaces\": [ \"*\" ],"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"echo-client-id\": false,"
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
        "    \"subnet\": \"192.0.2.0/24\" } ],"
        "\"valid-lifetime\": 4000 }";

    string config_true = "{ \"interfaces\": [ \"*\" ],"
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"echo-client-id\": true,"
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
        "    \"subnet\": \"192.0.2.0/24\" } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json_false = Element::fromJSON(config_false);
    ElementPtr json_true = Element::fromJSON(config_true);

Tomek Mrugalski's avatar
Tomek Mrugalski committed
773
    // Let's check the default. It should be true
Tomek Mrugalski's avatar
Tomek Mrugalski committed
774
    ASSERT_TRUE(CfgMgr::instance().echoClientId());
Tomek Mrugalski's avatar
Tomek Mrugalski committed
775 776

    // Now check that "false" configuration is really applied.
777
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json_false));
Tomek Mrugalski's avatar
Tomek Mrugalski committed
778
    ASSERT_FALSE(CfgMgr::instance().echoClientId());
779

Tomek Mrugalski's avatar
Tomek Mrugalski committed
780
    // Now check that "true" configuration is really applied.
781
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json_true));
Tomek Mrugalski's avatar
Tomek Mrugalski committed
782
    ASSERT_TRUE(CfgMgr::instance().echoClientId());
783 784 785 786 787

    // In any case revert back to the default value (true)
    CfgMgr::instance().echoClientId(true);
}

788 789
// This test checks if it is possible to override global values
// on a per subnet basis.
Tomek Mrugalski's avatar
Tomek Mrugalski committed
790
TEST_F(Dhcp4ParserTest, subnetLocal) {
791 792 793

    ConstElementPtr status;

794
    string config = "{ \"interfaces\": [ \"*\" ],"
795 796 797 798 799 800 801 802 803 804 805 806 807 808 809
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
        "    \"renew-timer\": 1, "
        "    \"rebind-timer\": 2, "
        "    \"valid-lifetime\": 4,"
        "    \"subnet\": \"192.0.2.0/24\" } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json = Element::fromJSON(config);

    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));

    // returned value should be 0 (configuration success)
Tomek Mrugalski's avatar
Tomek Mrugalski committed
810
    checkResult(status, 0);
811 812 813 814 815 816 817 818 819 820

    Subnet4Ptr subnet = CfgMgr::instance().getSubnet4(IOAddress("192.0.2.200"));
    ASSERT_TRUE(subnet);
    EXPECT_EQ(1, subnet->getT1());
    EXPECT_EQ(2, subnet->getT2());
    EXPECT_EQ(4, subnet->getValid());
}

// Test verifies that a subnet with pool values that do not belong to that
// pool are rejected.
Tomek Mrugalski's avatar
Tomek Mrugalski committed
821
TEST_F(Dhcp4ParserTest, poolOutOfSubnet) {
822 823 824

    ConstElementPtr status;

825
    string config = "{ \"interfaces\": [ \"*\" ],"
826 827 828 829 830 831 832 833 834 835 836
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.4.0/28\" ],"
        "    \"subnet\": \"192.0.2.0/24\" } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json = Element::fromJSON(config);

    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));

837
    // returned value must be 1 (values error)
838
    // as the pool does not belong to that subnet
839
    checkResult(status, 1);
840 841 842 843 844
}

// 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.
Tomek Mrugalski's avatar
Tomek Mrugalski committed
845
TEST_F(Dhcp4ParserTest, poolPrefixLen) {
846

Tomek Mrugalski's avatar
Tomek Mrugalski committed
847
    ConstElementPtr status;
848

849
    string config = "{ \"interfaces\": [ \"*\" ],"
850 851 852 853 854 855 856 857 858
        "\"rebind-timer\": 2000, "
        "\"renew-timer\": 1000, "
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.128/28\" ],"
        "    \"subnet\": \"192.0.2.0/24\" } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json = Element::fromJSON(config);

Tomek Mrugalski's avatar
Tomek Mrugalski committed
859
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
860

Tomek Mrugalski's avatar
Tomek Mrugalski committed
861 862
    // returned value must be 0 (configuration accepted)
    checkResult(status, 0);
863 864 865 866 867 868 869 870

    Subnet4Ptr subnet = CfgMgr::instance().getSubnet4(IOAddress("192.0.2.200"));
    ASSERT_TRUE(subnet);
    EXPECT_EQ(1000, subnet->getT1());
    EXPECT_EQ(2000, subnet->getT2());
    EXPECT_EQ(4000, subnet->getValid());
}

871
// The goal of this test is to check whether an option definition
872 873
// that defines an option carrying an IPv4 address can be created.
TEST_F(Dhcp4ParserTest, optionDefIpv4Address) {
874 875 876 877 878 879 880 881

    // Configuration string.
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 100,"
        "      \"type\": \"ipv4-address\","
        "      \"array\": False,"
882
        "      \"record-types\": \"\","
883 884
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"\""
885 886 887 888 889 890 891 892 893 894 895 896
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    // Make sure that the particular option definition does not exist.
    OptionDefinitionPtr def = CfgMgr::instance().getOptionDef("isc", 100);
    ASSERT_FALSE(def);

    // Use the configuration string to create new option definition.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
897
    checkResult(status, 0);
898 899 900 901

    // The option definition should now be available in the CfgMgr.
    def = CfgMgr::instance().getOptionDef("isc", 100);
    ASSERT_TRUE(def);
902 903 904 905 906 907

    // Verify that the option definition data is valid.
    EXPECT_EQ("foo", def->getName());
    EXPECT_EQ(100, def->getCode());
    EXPECT_FALSE(def->getArrayType());
    EXPECT_EQ(OPT_IPV4_ADDRESS_TYPE, def->getType());
908
    EXPECT_TRUE(def->getEncapsulatedSpace().empty());
909 910
}

911
// The goal of this test is to check whether an option definition
912 913 914 915 916 917 918 919 920 921 922 923
// that defines an option carrying a record of data fields can
// be created.
TEST_F(Dhcp4ParserTest, optionDefRecord) {

    // Configuration string.
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 100,"
        "      \"type\": \"record\","
        "      \"array\": False,"
        "      \"record-types\": \"uint16, ipv4-address, ipv6-address, string\","
924 925
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"\""
926 927 928 929 930 931 932 933 934 935 936 937
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    // Make sure that the particular option definition does not exist.
    OptionDefinitionPtr def = CfgMgr::instance().getOptionDef("isc", 100);
    ASSERT_FALSE(def);

    // Use the configuration string to create new option definition.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
938
    checkResult(status, 0);
939 940 941 942 943 944 945 946 947 948

    // The option definition should now be available in the CfgMgr.
    def = CfgMgr::instance().getOptionDef("isc", 100);
    ASSERT_TRUE(def);

    // Check the option data.
    EXPECT_EQ("foo", def->getName());
    EXPECT_EQ(100, def->getCode());
    EXPECT_EQ(OPT_RECORD_TYPE, def->getType());
    EXPECT_FALSE(def->getArrayType());
949
    EXPECT_TRUE(def->getEncapsulatedSpace().empty());
950

951 952 953 954 955 956 957 958 959 960 961
    // The option comprises the record of data fields. Verify that all
    // fields are present and they are of the expected types.
    const OptionDefinition::RecordFieldsCollection& record_fields =
        def->getRecordFields();
    ASSERT_EQ(4, record_fields.size());
    EXPECT_EQ(OPT_UINT16_TYPE, record_fields[0]);
    EXPECT_EQ(OPT_IPV4_ADDRESS_TYPE, record_fields[1]);
    EXPECT_EQ(OPT_IPV6_ADDRESS_TYPE, record_fields[2]);
    EXPECT_EQ(OPT_STRING_TYPE, record_fields[3]);
}

962 963 964 965 966 967 968 969 970 971 972
// The goal of this test is to verify that multiple option definitions
// can be created.
TEST_F(Dhcp4ParserTest, optionDefMultiple) {
    // Configuration string.
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 100,"
        "      \"type\": \"uint32\","
        "      \"array\": False,"
        "      \"record-types\": \"\","
973 974
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"\""
975 976 977 978 979 980 981
        "  },"
        "  {"
        "      \"name\": \"foo-2\","
        "      \"code\": 101,"
        "      \"type\": \"ipv4-address\","
        "      \"array\": False,"
        "      \"record-types\": \"\","
982 983
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"\""
984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    // Make sure that the option definitions do not exist yet.
    ASSERT_FALSE(CfgMgr::instance().getOptionDef("isc", 100));
    ASSERT_FALSE(CfgMgr::instance().getOptionDef("isc", 101));

    // Use the configuration string to create new option definitions.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
    checkResult(status, 0);

    // Check the first definition we have created.
    OptionDefinitionPtr def1 = CfgMgr::instance().getOptionDef("isc", 100);
    ASSERT_TRUE(def1);

    // Check the option data.
    EXPECT_EQ("foo", def1->getName());
    EXPECT_EQ(100, def1->getCode());
    EXPECT_EQ(OPT_UINT32_TYPE, def1->getType());
    EXPECT_FALSE(def1->getArrayType());
1007
    EXPECT_TRUE(def1->getEncapsulatedSpace().empty());
1008 1009 1010 1011 1012 1013 1014 1015 1016 1017

    // Check the second option definition we have created.
    OptionDefinitionPtr def2 = CfgMgr::instance().getOptionDef("isc", 101);
    ASSERT_TRUE(def2);

    // Check the option data.
    EXPECT_EQ("foo-2", def2->getName());
    EXPECT_EQ(101, def2->getCode());
    EXPECT_EQ(OPT_IPV4_ADDRESS_TYPE, def2->getType());
    EXPECT_FALSE(def2->getArrayType());
1018
    EXPECT_TRUE(def2->getEncapsulatedSpace().empty());
1019 1020
}

1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034
// The goal of this test is to verify that the duplicated option
// definition is not accepted.
TEST_F(Dhcp4ParserTest, optionDefDuplicate) {

    // Configuration string. Both option definitions have
    // the same code and belong to the same option space.
    // This configuration should not be accepted.
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 100,"
        "      \"type\": \"uint32\","
        "      \"array\": False,"
        "      \"record-types\": \"\","
1035 1036
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"\""
1037 1038 1039 1040 1041 1042 1043
        "  },"
        "  {"
        "      \"name\": \"foo-2\","
        "      \"code\": 100,"
        "      \"type\": \"ipv4-address\","
        "      \"array\": False,"
        "      \"record-types\": \"\","
1044 1045
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"\""
1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    // Make sure that the option definition does not exist yet.
    ASSERT_FALSE(CfgMgr::instance().getOptionDef("isc", 100));

    // Use the configuration string to create new option definitions.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
    checkResult(status, 1);
}

1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072
// The goal of this test is to verify that the option definition
// comprising an array of uint32 values can be created.
TEST_F(Dhcp4ParserTest, optionDefArray) {

    // Configuration string. Created option definition should
    // comprise an array of uint32 values.
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 100,"
        "      \"type\": \"uint32\","
        "      \"array\": True,"
        "      \"record-types\": \"\","
1073 1074
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"\""
1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    // Make sure that the particular option definition does not exist.
    OptionDefinitionPtr def = CfgMgr::instance().getOptionDef("isc", 100);
    ASSERT_FALSE(def);

    // Use the configuration string to create new option definition.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
    checkResult(status, 0);

    // The option definition should now be available in the CfgMgr.
    def = CfgMgr::instance().getOptionDef("isc", 100);
    ASSERT_TRUE(def);

    // Check the option data.
    EXPECT_EQ("foo", def->getName());
    EXPECT_EQ(100, def->getCode());
    EXPECT_EQ(OPT_UINT32_TYPE, def->getType());
    EXPECT_TRUE(def->getArrayType());
1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139
    EXPECT_TRUE(def->getEncapsulatedSpace().empty());
}

// The purpose of this test to verify that encapsulated option
// space name may be specified.
TEST_F(Dhcp4ParserTest, optionDefEncapsulate) {

    // Configuration string. Included the encapsulated
    // option space name.
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 100,"
        "      \"type\": \"uint32\","
        "      \"array\": False,"
        "      \"record-types\": \"\","
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"sub-opts-space\""
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    // Make sure that the particular option definition does not exist.
    OptionDefinitionPtr def = CfgMgr::instance().getOptionDef("isc", 100);
    ASSERT_FALSE(def);

    // Use the configuration string to create new option definition.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
    checkResult(status, 0);

    // The option definition should now be available in the CfgMgr.
    def = CfgMgr::instance().getOptionDef("isc", 100);
    ASSERT_TRUE(def);

    // Check the option data.
    EXPECT_EQ("foo", def->getName());
    EXPECT_EQ(100, def->getCode());
    EXPECT_EQ(OPT_UINT32_TYPE, def->getType());
    EXPECT_FALSE(def->getArrayType());
    EXPECT_EQ("sub-opts-space", def->getEncapsulatedSpace());
1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153
}

/// The purpose of this test is to verify that the option definition
/// with invalid name is not accepted.
TEST_F(Dhcp4ParserTest, optionDefInvalidName) {
    // Configuration string. The option name is invalid as it
    // contains the % character.
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"invalid%name\","
        "      \"code\": 100,"
        "      \"type\": \"string\","
        "      \"array\": False,"
        "      \"record-types\": \"\","
1154 1155
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"\""
1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    // Use the configuration string to create new option definition.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
    // Expecting parsing error (error code 1).
    checkResult(status, 1);
}

/// The purpose of this test is to verify that the option definition
/// with invalid type is not accepted.
TEST_F(Dhcp4ParserTest, optionDefInvalidType) {
    // Configuration string. The option type is invalid. It is
    // "sting" instead of "string".
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 100,"
        "      \"type\": \"sting\","
        "      \"array\": False,"
        "      \"record-types\": \"\","
1180 1181
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"\""
1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    // Use the configuration string to create new option definition.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
    // Expecting parsing error (error code 1).
    checkResult(status, 1);
}

/// The purpose of this test is to verify that the option definition
/// with invalid type is not accepted.
TEST_F(Dhcp4ParserTest, optionDefInvalidRecordType) {
    // Configuration string. The third of the record fields
    // is invalid. It is "sting" instead of "string".
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 100,"
        "      \"type\": \"record\","
        "      \"array\": False,"
        "      \"record-types\": \"uint32,uint8,sting\","
1206 1207
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"\""
1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    // Use the configuration string to create new option definition.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
    // Expecting parsing error (error code 1).
    checkResult(status, 1);
}

1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298
/// The goal of this test is to verify that the invalid encapsulated
/// option space name is not accepted.
TEST_F(Dhcp4ParserTest, optionDefInvalidEncapsulatedSpace) {
    // Configuration string. The encapsulated option space
    // name is invalid (% character is not allowed).
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 100,"
        "      \"type\": \"uint32\","
        "      \"array\": False,"
        "      \"record-types\": \"\","
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"invalid%space%name\""
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    // Use the configuration string to create new option definition.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
    // Expecting parsing error (error code 1).
    checkResult(status, 1);
}

/// The goal of this test is to verify that the encapsulated
/// option space name can't be specified for the option that
/// comprises an array of data fields.
TEST_F(Dhcp4ParserTest, optionDefEncapsulatedSpaceAndArray) {
    // Configuration string. The encapsulated option space
    // name is set to non-empty value and the array flag
    // is set.
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 100,"
        "      \"type\": \"uint32\","
        "      \"array\": True,"
        "      \"record-types\": \"\","
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"valid-space-name\""
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    // Use the configuration string to create new option definition.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
    // Expecting parsing error (error code 1).
    checkResult(status, 1);
}

/// The goal of this test is to verify that the option may not
/// encapsulate option space it belongs to.
TEST_F(Dhcp4ParserTest, optionDefEncapsulateOwnSpace) {
    // Configuration string. Option is set to encapsulate
    // option space it belongs to.
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 100,"
        "      \"type\": \"uint32\","
        "      \"array\": False,"
        "      \"record-types\": \"\","
        "      \"space\": \"isc\","
        "      \"encapsulate\": \"isc\""
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    // Use the configuration string to create new option definition.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
    // Expecting parsing error (error code 1).
    checkResult(status, 1);
}
1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316

/// The purpose of this test is to verify that it is not allowed
/// to override the standard option (that belongs to dhcp4 option
/// space) and that it is allowed to define option in the dhcp4
/// option space that has a code which is not used by any of the
/// standard options.
TEST_F(Dhcp4ParserTest, optionStandardDefOverride) {

    // Configuration string. The option code 109 is unassigned
    // so it can be used for a custom option definition in
    // dhcp4 option space.
    std::string config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 109,"
        "      \"type\": \"string\","
        "      \"array\": False,"
        "      \"record-types\": \"\","
1317 1318
        "      \"space\": \"dhcp4\","
        "      \"encapsulate\": \"\""
1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352
        "  } ]"
        "}";
    ElementPtr json = Element::fromJSON(config);

    OptionDefinitionPtr def = CfgMgr::instance().getOptionDef("dhcp4", 109);
    ASSERT_FALSE(def);

    // Use the configuration string to create new option definition.
    ConstElementPtr status;
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
    checkResult(status, 0);

    // The option definition should now be available in the CfgMgr.
    def = CfgMgr::instance().getOptionDef("dhcp4", 109);
    ASSERT_TRUE(def);

    // Check the option data.
    EXPECT_EQ("foo", def->getName());
    EXPECT_EQ(109, def->getCode());
    EXPECT_EQ(OPT_STRING_TYPE, def->getType());
    EXPECT_FALSE(def->getArrayType());

    // The combination of option space and code is
    // invalid. The 'dhcp4' option space groups
    // standard options and the code 100 is reserved
    // for one of them.
    config =
        "{ \"option-def\": [ {"
        "      \"name\": \"foo\","
        "      \"code\": 100,"
        "      \"type\": \"string\","
        "      \"array\": False,"
        "      \"record-types\": \"\","
1353 1354
        "      \"space\": \"dhcp4\","
        "      \"encapsulate\": \"\""
1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365
        "  } ]"
        "}";
    json = Element::fromJSON(config);

    // Use the configuration string to create new option definition.
    EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
    ASSERT_TRUE(status);
    // Expecting parsing error (error code 1).
    checkResult(status, 1);
}

1366 1367 1368 1369 1370
// 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.
TEST_F(Dhcp4ParserTest, optionDataDefaults) {
    ConstElementPtr x;
1371
    string config = "{ \"interfaces\": [ \"*\" ],"
1372 1373 1374
        "\"rebind-timer\": 2000,"
        "\"renew-timer\": 1000,"
        "\"option-data\": [ {"
1375 1376
        "    \"name\": \"dhcp-message\","
        "    \"space\": \"dhcp4\","
1377
        "    \"code\": 56,"
1378 1379
        "    \"data\": \"AB CDEF0105\","
        "    \"csv-format\": False"
1380 1381
        " },"
        " {"
1382 1383
        "    \"name\": \"default-ip-ttl\","
        "    \"space\": \"dhcp4\","
1384
        "    \"code\": 23,"
1385 1386
        "    \"data\": \"01\","
        "    \"csv-format\": False"
1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402
        " } ],"
        "\"subnet4\": [ { "
        "    \"pool\": [ \"192.0.2.1 - 192.0.2.100\" ],"
        "    \"subnet\": \"192.0.2.0/24\""
        " } ],"
        "\"valid-lifetime\": 4000 }";

    ElementPtr json = Element::fromJSON(config);

    EXPECT_NO_THROW(x