folly/test/IPAddressTest.cpp

   1 /*
   2  * Copyright 2015 Facebook, Inc.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *   http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <folly/test/IPAddressTest.h>
  18
  19 #include <gtest/gtest.h>
  20
  21 #include <folly/Bits.h>
  22 #include <folly/Format.h>
  23 #include <folly/String.h>
  24 #include <folly/MacAddress.h>
  25
  26 using namespace folly;
  27 using namespace std;
  28
  29 // tests code example
  30 TEST(IPAddress, CodeExample) {
  31   EXPECT_EQ(4, sizeof(IPAddressV4));
  32   EXPECT_EQ(20, sizeof(IPAddressV6));
  33   EXPECT_EQ(24, sizeof(IPAddress));
  34   IPAddress uninitaddr;
  35   IPAddress v4addr("192.0.2.129");
  36   IPAddress v6map("::ffff:192.0.2.129");
  37   ASSERT_TRUE(uninitaddr.empty());
  38   ASSERT_FALSE(v4addr.empty());
  39   ASSERT_FALSE(v6map.empty());
  40   EXPECT_TRUE(v4addr.inSubnet("192.0.2.0/24"));
  41   EXPECT_TRUE(v4addr.inSubnet(IPAddress("192.0.2.0"), 24));
  42   EXPECT_TRUE(v4addr.inSubnet("192.0.2.128/30"));
  43   EXPECT_FALSE(v4addr.inSubnet("192.0.2.128/32"));
  44   EXPECT_EQ(2164392128, v4addr.asV4().toLong());
  45   EXPECT_EQ(3221226113, v4addr.asV4().toLongHBO());
  46   ASSERT_FALSE(uninitaddr.isV4());
  47   ASSERT_FALSE(uninitaddr.isV6());
  48   ASSERT_TRUE(v4addr.isV4());
  49   ASSERT_TRUE(v6map.isV6());
  50   EXPECT_TRUE(v4addr == v6map);
  51   ASSERT_TRUE(v6map.isIPv4Mapped());
  52   EXPECT_TRUE(v4addr.asV4() == IPAddress::createIPv4(v6map));
  53   EXPECT_TRUE(IPAddress::createIPv6(v4addr) == v6map.asV6());
  54 }
  55
  56 TEST(IPAddress, Scope) {
  57   // Test that link-local scope is saved
  58   auto str = "fe80::62eb:69ff:fe9b:ba60%eth0";
  59   IPAddressV6 a2(str);
  60   EXPECT_EQ(str, a2.str());
  61
  62   sockaddr_in6 sock = a2.toSockAddr();
  63   EXPECT_NE(0, sock.sin6_scope_id);
  64
  65   IPAddress a1(str);
  66   EXPECT_EQ(str, a1.str());
  67
  68   a2.setScopeId(0);
  69   EXPECT_NE(a1, a2);
  70
  71   EXPECT_TRUE(a2 < a1);
  72 }
  73
  74 TEST(IPAddress, Ordering) {
  75   IPAddress a1("0.1.1.1");
  76   IPAddress a2("1.1.1.0");
  77   EXPECT_TRUE(a1 < a2);
  78
  79   IPAddress b1("::ffff:0.1.1.1");
  80   IPAddress b2("::ffff:1.1.1.0");
  81   EXPECT_TRUE(b1 < b2);
  82 }
  83
  84 TEST(IPAddress, InvalidAddressFamilyExceptions) {
  85   // asV4
  86   {
  87     IPAddress addr;
  88     EXPECT_THROW(addr.asV4(), InvalidAddressFamilyException);
  89   }
  90   // asV6
  91   {
  92     IPAddress addr;
  93     EXPECT_THROW(addr.asV6(), InvalidAddressFamilyException);
  94   }
  95   // sockaddr ctor
  96   {
  97     // setup
  98     sockaddr_in addr;
  99     addr.sin_family = AF_UNSPEC;
 100
 101     EXPECT_THROW(IPAddress((sockaddr *)&addr), InvalidAddressFamilyException);
 102   }
 103 }
 104
 105 TEST(IPAddress, CreateNetwork) {
 106   // test valid IPv4 network
 107   {
 108     auto net = IPAddress::createNetwork("192.168.0.1/24");
 109     ASSERT_TRUE(net.first.isV4());
 110     EXPECT_EQ("192.168.0.0", net.first.str());
 111     EXPECT_EQ(24, net.second);
 112     EXPECT_EQ("192.168.0.0/24", IPAddress::networkToString(net));
 113   }
 114   // test valid IPv4 network without applying mask
 115   {
 116     auto net = IPAddress::createNetwork("192.168.0.1/24", -1, false);
 117     ASSERT_TRUE(net.first.isV4());
 118     EXPECT_EQ("192.168.0.1", net.first.str());
 119     EXPECT_EQ(24, net.second);
 120     EXPECT_EQ("192.168.0.1/24", IPAddress::networkToString(net));
 121   }
 122   // test valid IPv6 network
 123   {
 124     auto net = IPAddress::createNetwork("1999::1/24");
 125     ASSERT_TRUE(net.first.isV6());
 126     EXPECT_EQ("1999::", net.first.str());
 127     EXPECT_EQ(24, net.second);
 128     EXPECT_EQ("1999::/24", IPAddress::networkToString(net));
 129   }
 130   // test valid IPv6 network without applying mask
 131   {
 132     auto net = IPAddress::createNetwork("1999::1/24", -1, false);
 133     ASSERT_TRUE(net.first.isV6());
 134     EXPECT_EQ("1999::1", net.first.str());
 135     EXPECT_EQ(24, net.second);
 136     EXPECT_EQ("1999::1/24", IPAddress::networkToString(net));
 137   }
 138   // test empty string
 139   EXPECT_THROW(IPAddress::createNetwork(""), IPAddressFormatException);
 140   // test multi slash string
 141   EXPECT_THROW(IPAddress::createNetwork("192.168.0.1/24/36"),
 142                                         IPAddressFormatException);
 143   // test no slash string with default IPv4
 144   {
 145     auto net = IPAddress::createNetwork("192.168.0.1");
 146     ASSERT_TRUE(net.first.isV4());
 147     EXPECT_EQ("192.168.0.1", net.first.str());
 148     EXPECT_EQ(32, net.second);  // auto-detected
 149     net = IPAddress::createNetwork("192.168.0.1", -1, false);
 150     ASSERT_TRUE(net.first.isV4());
 151     EXPECT_EQ("192.168.0.1", net.first.str());
 152     EXPECT_EQ(32, net.second);
 153   }
 154   // test no slash string with default IPv6
 155   {
 156     auto net = IPAddress::createNetwork("1999::1");
 157     ASSERT_TRUE(net.first.isV6());
 158     EXPECT_EQ("1999::1", net.first.str());
 159     EXPECT_EQ(128, net.second);
 160   }
 161   // test no slash string with invalid default
 162   EXPECT_THROW(IPAddress::createNetwork("192.168.0.1", 33),
 163                IPAddressFormatException);
 164
 165 }
 166
 167 // test assignment operators
 168 TEST(IPAddress, Assignment) {
 169   static const string kIPv4Addr = "69.63.189.16";
 170   static const string kIPv6Addr = "2620:0:1cfe:face:b00c::3";
 171
 172   // Test assigning IPAddressV6 addr to IPAddress (was V4)
 173   {
 174     IPAddress addr(kIPv4Addr);
 175     IPAddressV6 addrV6 = IPAddress(kIPv6Addr).asV6();
 176     EXPECT_TRUE(addr.isV4());
 177     EXPECT_EQ(kIPv4Addr, addr.str());
 178     addr = addrV6;
 179     EXPECT_TRUE(addr.isV6());
 180     EXPECT_EQ(kIPv6Addr, addr.str());
 181   }
 182   // Test assigning IPAddressV4 addr to IPAddress (was V6)
 183   {
 184     IPAddress addr(kIPv6Addr);
 185     IPAddressV4 addrV4 = IPAddress(kIPv4Addr).asV4();
 186     EXPECT_TRUE(addr.isV6());
 187     EXPECT_EQ(kIPv6Addr, addr.str());
 188     addr = addrV4;
 189     EXPECT_TRUE(addr.isV4());
 190     EXPECT_EQ(kIPv4Addr, addr.str());
 191   }
 192   // Test assigning IPAddress(v6) to IPAddress (was v4)
 193   {
 194     IPAddress addr(kIPv4Addr);
 195     IPAddress addrV6 = IPAddress(kIPv6Addr);
 196     EXPECT_TRUE(addr.isV4());
 197     EXPECT_EQ(kIPv4Addr, addr.str());
 198     addr = addrV6;
 199     EXPECT_TRUE(addr.isV6());
 200     EXPECT_EQ(kIPv6Addr, addr.str());
 201   }
 202   // Test assigning IPAddress(v4) to IPAddress (was v6)
 203   {
 204     IPAddress addr(kIPv6Addr);
 205     IPAddress addrV4 = IPAddress(kIPv4Addr);
 206     EXPECT_TRUE(addr.isV6());
 207     EXPECT_EQ(kIPv6Addr, addr.str());
 208     addr = addrV4;
 209     EXPECT_TRUE(addr.isV4());
 210     EXPECT_EQ(kIPv4Addr, addr.str());
 211   }
 212 }
 213
 214 // Test the default constructors
 215 TEST(IPAddress, CtorDefault) {
 216   IPAddressV4 v4;
 217   EXPECT_EQ(IPAddressV4("0.0.0.0"), v4);
 218   IPAddressV6 v6;
 219   EXPECT_EQ(IPAddressV6("::0"), v6);
 220 }
 221
 222 // Test addresses constructed using a in[6]_addr value
 223 TEST_P(IPAddressTest, CtorAddress) {
 224   AddressData param = GetParam();
 225   IPAddress strAddr(param.address);
 226   IPAddress address;
 227
 228   if (param.version == 4) {
 229     in_addr v4addr = detail::Bytes::mkAddress4(&param.bytes[0]);
 230     address = IPAddress(v4addr);
 231   } else {
 232     in6_addr v6addr = detail::Bytes::mkAddress6(&param.bytes[0]);
 233     address = IPAddress(v6addr);
 234   }
 235   ExpectIsValid(address);
 236   EXPECT_EQ(strAddr, address);
 237 }
 238
 239 // Test addresses constructed using a binary address
 240 TEST_P(IPAddressTest, CtorBinary) {
 241   AddressData param = GetParam();
 242   IPAddress address;
 243
 244   if (param.version == 4) {
 245     in_addr v4addr = AddressData::parseAddress4(param.address);
 246     address = IPAddress::fromBinary(ByteRange((unsigned char*)&v4addr, 4));
 247   } else {
 248     in6_addr v6addr = AddressData::parseAddress6(param.address);
 249     address = IPAddress::fromBinary(ByteRange((unsigned char*)&v6addr, 16));
 250   }
 251
 252   ExpectIsValid(address);
 253   EXPECT_EQ(IPAddress(param.address), address);
 254 }
 255
 256 // Test addresses constructed using a string
 257 TEST_P(IPAddressTest, CtorString) {
 258   AddressData param = GetParam();
 259   IPAddress address(param.address);
 260
 261   ExpectIsValid(address);
 262
 263   // Test the direct version-specific constructor
 264   if (param.version == 4) {
 265     IPAddressV4 v4(param.address);
 266     ExpectIsValid(IPAddress(v4));
 267     EXPECT_THROW(IPAddressV6 v6(param.address), IPAddressFormatException);
 268   } else if (param.version == 6) {
 269     IPAddressV6 v6(param.address);
 270     ExpectIsValid(IPAddress(v6));
 271     EXPECT_THROW(IPAddressV4 v4(param.address), IPAddressFormatException);
 272   }
 273 }
 274
 275 TEST(IPAddress, CtorSockaddr) {
 276   // test v4 address
 277   {
 278     // setup
 279     sockaddr_in addr;
 280     in_addr sin_addr;
 281     sin_addr.s_addr = htonl(2122547223);
 282     addr.sin_family = AF_INET;
 283     addr.sin_addr = sin_addr;
 284
 285     IPAddress ipAddr((sockaddr *)&addr);
 286     EXPECT_TRUE(ipAddr.isV4());
 287     EXPECT_EQ("126.131.128.23", ipAddr.str());
 288   }
 289   // test v6 address
 290   {
 291     // setup
 292     sockaddr_in6 addr;
 293     memset(&addr, 0, sizeof(addr));
 294     in6_addr sin_addr;
 295     ByteArray16 sec{{
 296       // 2620:0:1cfe:face:b00c::3
 297       38,32,0,0,28,254,250,206,176,12,0,0,0,0,0,3
 298     }};
 299     std::memcpy(sin_addr.s6_addr, sec.data(), 16);
 300     addr.sin6_family = AF_INET6;
 301     addr.sin6_addr = sin_addr;
 302
 303     IPAddress ipAddr((sockaddr *)&addr);
 304     EXPECT_TRUE(ipAddr.isV6());
 305     EXPECT_EQ("2620:0:1cfe:face:b00c::3", ipAddr.str());
 306   }
 307   // test nullptr exception
 308   {
 309     sockaddr *addr = nullptr;
 310     EXPECT_THROW(IPAddress((const sockaddr*)addr), IPAddressFormatException);
 311   }
 312   // test invalid family exception
 313   {
 314     // setup
 315     sockaddr_in addr;
 316     in_addr sin_addr;
 317     sin_addr.s_addr = htonl(2122547223);
 318     addr.sin_family = AF_UNSPEC;
 319     addr.sin_addr = sin_addr;
 320
 321     EXPECT_THROW(IPAddress((sockaddr *)&addr), IPAddressFormatException);
 322   }
 323 }
 324
 325 TEST(IPAddress, ToSockaddrStorage) {
 326   // test v4 address
 327   {
 328     string strAddr("126.131.128.23");
 329     IPAddress addr(strAddr);
 330     sockaddr_storage out;
 331
 332     ASSERT_TRUE(addr.isV4()); // test invariant
 333     EXPECT_GT(addr.toSockaddrStorage(&out), 0);
 334
 335     IPAddress sockAddr((sockaddr*)&out);
 336     ASSERT_TRUE(sockAddr.isV4());
 337     EXPECT_EQ(strAddr, sockAddr.str());
 338   }
 339   // test v6 address
 340   {
 341     string strAddr("2620:0:1cfe:face:b00c::3");
 342     IPAddress addr(strAddr);
 343     sockaddr_storage out;
 344
 345     ASSERT_TRUE(addr.isV6()); // test invariant
 346     EXPECT_GT(addr.toSockaddrStorage(&out), 0);
 347
 348     IPAddress sockAddr((sockaddr*)&out);
 349     ASSERT_TRUE(sockAddr.isV6());
 350     EXPECT_EQ(strAddr, sockAddr.str());
 351   }
 352   // test nullptr exception
 353   {
 354     sockaddr_storage *out = nullptr;
 355     IPAddress addr("127.0.0.1");
 356     EXPECT_THROW(addr.toSockaddrStorage(out), IPAddressFormatException);
 357   }
 358   // test invalid family exception
 359   {
 360     IPAddress addr;
 361     sockaddr_storage out;
 362     ASSERT_EQ(AF_UNSPEC, addr.family());
 363     EXPECT_THROW(addr.toSockaddrStorage(&out), InvalidAddressFamilyException);
 364   }
 365 }
 366
 367 TEST(IPAddress, ToString) {
 368   // Test with IPAddressV4
 369   IPAddressV4 addr_10_0_0_1("10.0.0.1");
 370   EXPECT_EQ("10.0.0.1", folly::to<string>(addr_10_0_0_1));
 371   // Test with IPAddressV6
 372   IPAddressV6 addr_1("::1");
 373   EXPECT_EQ("::1", folly::to<string>(addr_1));
 374   // Test with IPAddress, both V4 and V6
 375   IPAddress addr_10_1_2_3("10.1.2.3");
 376   EXPECT_EQ("10.1.2.3", folly::to<string>(addr_10_1_2_3));
 377   IPAddress addr_1_2_3("1:2::3");
 378   EXPECT_EQ("1:2::3", folly::to<string>(addr_1_2_3));
 379
 380   // Test a combination of all the above arguments
 381   EXPECT_EQ("1:2::3 - 10.0.0.1 - ::1 - 10.1.2.3",
 382             folly::to<string>(addr_1_2_3, " - ", addr_10_0_0_1,
 383                               " - ", addr_1, " - ", addr_10_1_2_3));
 384 }
 385
 386 // Test that invalid string values are killed
 387 TEST_P(IPAddressCtorTest, InvalidCreation) {
 388   string addr = GetParam();
 389   EXPECT_THROW(IPAddress((const string)addr), IPAddressFormatException)
 390       << "IPAddress(" << addr << ") "
 391       << "should have thrown an IPAddressFormatException";
 392 }
 393
 394 // Test that invalid binary values throw an exception
 395 TEST_P(IPAddressCtorBinaryTest, InvalidBinary) {
 396   auto bin = GetParam();
 397   EXPECT_THROW(IPAddress::fromBinary(ByteRange(&bin[0], bin.size())),
 398                IPAddressFormatException);
 399 }
 400
 401 // Test toFullyQualified()
 402 TEST(IPAddress, ToFullyQualifiedFb) {
 403   IPAddress ip("2620:0:1cfe:face:b00c::3");
 404   EXPECT_EQ("2620:0000:1cfe:face:b00c:0000:0000:0003", ip.toFullyQualified())
 405       << ip;
 406 }
 407 TEST(IPAddress, ToFullyQualifiedLocal) {
 408   IPAddress ip("::1");
 409   EXPECT_EQ("0000:0000:0000:0000:0000:0000:0000:0001", ip.toFullyQualified())
 410       << ip;
 411 }
 412 TEST(IPAddress, ToFullyQualifiedSize) {
 413   auto actual = IPAddressV6::kToFullyQualifiedSize;
 414   auto expected = IPAddress("::").toFullyQualified().size();
 415   EXPECT_EQ(expected, actual);
 416 }
 417
 418 // test v4-v6 mapped addresses
 419 TEST_P(IPAddressMappedTest, MappedEqual) {
 420   auto param = GetParam();
 421   string mappedIp = param.first;
 422   string otherIp = param.second;
 423
 424   auto mapped = IPAddress(mappedIp);
 425   auto expected = IPAddress(otherIp);
 426
 427   EXPECT_EQ(expected, mapped);
 428
 429   IPAddress v6addr;
 430   if (mapped.isV4()) {
 431     v6addr = mapped.asV4().createIPv6();
 432   } else if (expected.isV4()) {
 433     v6addr = expected.asV4().createIPv6();
 434   }
 435   EXPECT_TRUE(v6addr.isV6());
 436   EXPECT_TRUE(mapped == v6addr);
 437   EXPECT_TRUE(expected == v6addr);
 438 }
 439
 440 // Test subnet mask calculations
 441 TEST_P(IPAddressMaskTest, Masks) {
 442   auto param = GetParam();
 443
 444   IPAddress ip(param.address);
 445   IPAddress masked = ip.mask(param.mask);
 446   EXPECT_EQ(param.subnet, masked.str())
 447       << param.address << "/" << to_string(param.mask)
 448       << " -> " << param.subnet;
 449 }
 450
 451 // Test inSubnet calculations
 452 TEST_P(IPAddressMaskTest, InSubnet) {
 453   auto param = GetParam();
 454
 455   IPAddress ip(param.address);
 456   IPAddress subnet(param.subnet);
 457   EXPECT_TRUE(ip.inSubnet(subnet, param.mask));
 458 }
 459
 460 // Test boundary conditions for subnet calculations
 461 TEST_P(IPAddressMaskBoundaryTest, NonMaskedSubnet) {
 462   auto param = GetParam();
 463   IPAddress ip(param.address);
 464   IPAddress subnet(param.subnet);
 465   EXPECT_EQ(param.inSubnet, ip.inSubnet(subnet, param.mask));
 466 }
 467
 468 TEST(IPAddress, UnitializedEqual) {
 469   IPAddress addrEmpty;
 470   IPAddress ip4("127.0.0.1");
 471   EXPECT_FALSE(addrEmpty == ip4);
 472   EXPECT_FALSE(ip4 == addrEmpty);
 473   IPAddress ip6("::1");
 474   EXPECT_FALSE(addrEmpty == ip6);
 475   EXPECT_FALSE(ip6 == addrEmpty);
 476   IPAddress ip6Map("::ffff:192.0.2.129");
 477   EXPECT_FALSE(addrEmpty == ip6Map);
 478   EXPECT_FALSE(ip6Map == addrEmpty);
 479   IPAddress ip4Zero("0.0.0.0");
 480   EXPECT_FALSE(addrEmpty == ip4Zero);
 481   EXPECT_FALSE(ip4Zero == addrEmpty);
 482   IPAddress ip6Zero("::");
 483   EXPECT_FALSE(addrEmpty == ip6Zero);
 484   EXPECT_FALSE(ip6Zero == addrEmpty);
 485   EXPECT_EQ(addrEmpty, addrEmpty);
 486 }
 487
 488 // Test subnet calcs with 6to4 addresses
 489 TEST(IPAddress, InSubnetWith6to4) {
 490   auto ip = IPAddress("2002:c000:022a::"); // 192.0.2.42
 491   auto subnet = IPAddress("192.0.0.0");
 492   EXPECT_TRUE(ip.inSubnet(subnet, 16));
 493
 494   auto ip2 = IPAddress("192.0.0.1");
 495   auto subnet2 = IPAddress("2002:c000:0000::"); // 192.0.0.0
 496   EXPECT_TRUE(ip2.inSubnet(subnet2, 14));
 497
 498   auto ip3 = IPAddress("2002:c000:022a::"); // 192.0.2.42
 499   auto subnet3 = IPAddress("2002:c000:0000::"); // 192.0.0.0
 500   EXPECT_TRUE(ip3.inSubnet(subnet3, 16));
 501 }
 502
 503 static const vector<string> ipv4Strs = {
 504   "127.0.0.1",
 505   "198.168.0.1",
 506   "8.8.0.0",
 507 };
 508 TEST(IPAddress, getIPv6For6To4) {
 509   for (auto ipv4Str : ipv4Strs) {
 510     auto ip = IPAddress(ipv4Str);
 511     EXPECT_TRUE(ip.isV4());
 512     IPAddressV4 ipv4 = ip.asV4();
 513     auto ipv6 = ipv4.getIPv6For6To4();
 514     EXPECT_EQ(ipv6.type(), IPAddressV6::Type::T6TO4);
 515     auto ipv4New = ipv6.getIPv4For6To4();
 516     EXPECT_TRUE(ipv4Str.compare(ipv4New.str()) == 0);
 517   }
 518 }
 519
 520 static const vector<pair<string, uint8_t> > invalidMasks = {
 521   {"127.0.0.1", 33},
 522   {"::1", 129},
 523 };
 524 TEST(IPAddress, InvalidMask) {
 525   for (auto& tc : invalidMasks) {
 526     auto ip = IPAddress(tc.first);
 527     EXPECT_THROW(ip.mask(tc.second), IPAddressFormatException);
 528   }
 529 }
 530
 531 static const vector<pair<string, IPAddressV6::Type> > v6types = {
 532   {"::1", IPAddressV6::Type::NORMAL},
 533   {"2620:0:1cfe:face:b00c::3", IPAddressV6::Type::NORMAL},
 534   {"2001:0000:4136:e378:8000:63bf:3fff:fdd2", IPAddressV6::Type::TEREDO},
 535   {"2002:c000:022a::", IPAddressV6::Type::T6TO4},
 536 };
 537 TEST(IPAddress, V6Types) {
 538   auto mkName = [&](const IPAddressV6::Type t) -> string {
 539     switch (t) {
 540       case IPAddressV6::Type::TEREDO:
 541         return "teredo";
 542       case IPAddressV6::Type::T6TO4:
 543         return "6to4";
 544       default:
 545         return "default";
 546     }
 547   };
 548
 549   for (auto& tc : v6types) {
 550     auto ip = IPAddress(tc.first);
 551     EXPECT_TRUE(ip.isV6());
 552     IPAddressV6 ipv6 = ip.asV6();
 553     EXPECT_EQ(tc.second, ipv6.type())
 554         << "expected " << mkName(tc.second) << ", got " << mkName(ipv6.type());
 555     switch (tc.second) {
 556       case IPAddressV6::Type::TEREDO:
 557         EXPECT_TRUE(ipv6.isTeredo()) << "isTeredo was false";
 558         EXPECT_FALSE(ipv6.is6To4()) << "is6To4 was true";
 559         break;
 560       case IPAddressV6::Type::T6TO4:
 561         EXPECT_TRUE(ipv6.is6To4()) << "is6To4 was false";
 562         EXPECT_FALSE(ipv6.isTeredo()) << "isTeredo was true";
 563         break;
 564       case IPAddressV6::Type::NORMAL:
 565         EXPECT_FALSE(ipv6.is6To4()) << "is6To4 was true";
 566         EXPECT_FALSE(ipv6.isTeredo()) << "isTeredo was true";
 567         break;
 568       default:
 569         throw std::range_error("Invalid expected type: " +
 570                                to_string(tc.second));
 571     }
 572   }
 573 }
 574
 575 static const vector<pair<string, uint32_t> > provideToLong = {
 576   {"0.0.0.0", 0},
 577   {"10.0.0.0", 167772160},
 578   {"126.131.128.23", 2122547223},
 579   {"192.168.0.0", 3232235520},
 580 };
 581 TEST(IPAddress, ToLong) {
 582   for (auto& tc : provideToLong) {
 583     auto ip = IPAddress(tc.first);
 584     EXPECT_TRUE(ip.isV4());
 585     IPAddressV4 ipv4 = ip.asV4();
 586     EXPECT_EQ(tc.second, ipv4.toLongHBO());
 587
 588     auto ip2 = IPAddress::fromLongHBO(tc.second);
 589     EXPECT_TRUE(ip2.isV4());
 590     EXPECT_TRUE(tc.first.compare(ip2.str()) == 0);
 591     EXPECT_EQ(tc.second, ip2.asV4().toLongHBO());
 592
 593     auto nla = htonl(tc.second);
 594     auto ip3 = IPAddress::fromLong(nla);
 595     EXPECT_TRUE(ip3.isV4());
 596     EXPECT_TRUE(tc.first.compare(ip3.str()) == 0);
 597     EXPECT_EQ(nla, ip3.asV4().toLong());
 598   }
 599 }
 600
 601 TEST(IPAddress, fromBinaryV4) {
 602   for (auto& tc : provideToLong) {
 603     SCOPED_TRACE(tc.first);
 604     union {
 605       uint8_t u8[4];
 606       uint32_t u32;
 607     } data;
 608     data.u32 = Endian::big(tc.second);
 609     ByteRange bytes(data.u8, 4);
 610
 611     auto fromBin = IPAddressV4::fromBinary(bytes);
 612     IPAddressV4 fromStr(tc.first);
 613     EXPECT_EQ(fromStr, fromBin);
 614
 615     IPAddressV4 addr2("0.0.0.0");
 616     addr2 = IPAddressV4::fromBinary(bytes);
 617     EXPECT_EQ(fromStr, addr2);
 618
 619     IPAddress genericAddr = IPAddress::fromBinary(bytes);
 620     ASSERT_TRUE(genericAddr.isV4());
 621     EXPECT_EQ(fromStr, genericAddr.asV4());
 622     EXPECT_EQ(ByteRange(genericAddr.bytes(), genericAddr.byteCount()), bytes);
 623   }
 624
 625   uint8_t data[20];
 626   EXPECT_THROW(IPAddressV4::fromBinary(ByteRange(data, 3)),
 627                IPAddressFormatException);
 628   EXPECT_THROW(IPAddressV4::fromBinary(ByteRange(data, 16)),
 629                IPAddressFormatException);
 630   EXPECT_THROW(IPAddressV4::fromBinary(ByteRange(data, 20)),
 631                IPAddressFormatException);
 632 }
 633
 634 static const vector<pair<string, vector<uint8_t> > > provideBinary16Bytes = {
 635   {"::0",
 636     {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 637      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}},
 638   {"1::2",
 639     {0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 640      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02}},
 641   {"fe80::0012:34ff:fe56:78ab",
 642     {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 643      0x00, 0x12, 0x34, 0xff, 0xfe, 0x56, 0x78, 0xab}},
 644   {"2001:db8:1234:5678:90ab:cdef:8765:4321",
 645     {0x20, 0x01, 0x0d, 0xb8, 0x12, 0x34, 0x56, 0x78,
 646      0x90, 0xab, 0xcd, 0xef, 0x87, 0x65, 0x43, 0x21}},
 647   {"::ffff:0:c0a8:1",
 648     {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 649      0xff, 0xff, 0x00, 0x00, 0xc0, 0xa8, 0x00, 0x01}},
 650 };
 651
 652 TEST(IPAddress, fromBinaryV6) {
 653   for (auto& tc : provideBinary16Bytes) {
 654     SCOPED_TRACE(tc.first);
 655     ByteRange bytes(&tc.second.front(), tc.second.size());
 656
 657     auto fromBin = IPAddressV6::fromBinary(bytes);
 658     IPAddressV6 fromStr(tc.first);
 659     EXPECT_EQ(fromStr, fromBin);
 660
 661     IPAddressV6 addr2("::0");
 662     addr2 = IPAddressV6::fromBinary(bytes);
 663     EXPECT_EQ(fromStr, addr2);
 664
 665     IPAddress genericAddr = IPAddress::fromBinary(bytes);
 666     ASSERT_TRUE(genericAddr.isV6());
 667     EXPECT_EQ(fromStr, genericAddr.asV6());
 668     EXPECT_EQ(ByteRange(genericAddr.bytes(), genericAddr.byteCount()), bytes);
 669   }
 670
 671   uint8_t data[20];
 672   EXPECT_THROW(IPAddressV6::fromBinary(ByteRange(data, 3)),
 673                IPAddressFormatException);
 674   EXPECT_THROW(IPAddressV6::fromBinary(ByteRange(data, 4)),
 675                IPAddressFormatException);
 676   EXPECT_THROW(IPAddressV6::fromBinary(ByteRange(data, 20)),
 677                IPAddressFormatException);
 678 }
 679
 680 TEST_P(IPAddressFlagTest, IsLoopback) {
 681   AddressFlags param = GetParam();
 682   IPAddress addr(param.address);
 683
 684   EXPECT_EQ(param.version, addr.version());
 685   EXPECT_EQ(param.isLoopback(), addr.isLoopback());
 686 }
 687
 688 TEST_P(IPAddressFlagTest, IsPrivate) {
 689   AddressFlags param = GetParam();
 690   IPAddress addr(param.address);
 691
 692   EXPECT_EQ(param.version, addr.version());
 693   EXPECT_EQ(param.isPrivate(), addr.isPrivate()) << addr;
 694 }
 695
 696 TEST_P(IPAddressFlagTest, IsNonroutable) {
 697   AddressFlags param = GetParam();
 698   IPAddress addr(param.address);
 699
 700   EXPECT_EQ(param.version, addr.version());
 701   EXPECT_EQ(param.isNonroutable(), addr.isNonroutable()) << addr;
 702 }
 703
 704 TEST_P(IPAddressFlagTest, IsZero) {
 705   AddressFlags param = GetParam();
 706   IPAddress addr(param.address);
 707
 708   EXPECT_EQ(param.version, addr.version());
 709   EXPECT_EQ(param.isZero(), addr.isZero()) << addr;
 710 }
 711
 712 TEST_P(IPAddressFlagTest, IsLinkLocal) {
 713   AddressFlags param = GetParam();
 714   IPAddress addr(param.address);
 715   EXPECT_EQ(param.isLinkLocal(), addr.isLinkLocal()) << addr;
 716 }
 717
 718 TEST(IPAddress, CreateLinkLocal) {
 719   IPAddressV6 addr(IPAddressV6::LINK_LOCAL, MacAddress("00:05:73:f9:46:fc"));
 720   EXPECT_EQ(IPAddressV6("fe80::0205:73ff:fef9:46fc"), addr);
 721
 722   addr = IPAddressV6(IPAddressV6::LINK_LOCAL, MacAddress("02:00:00:12:34:56"));
 723   EXPECT_EQ(IPAddressV6("fe80::ff:fe12:3456"), addr);
 724 }
 725
 726 TEST_P(IPAddressFlagTest, IsLinkLocalBroadcast) {
 727   AddressFlags param = GetParam();
 728   IPAddress addr(param.address);
 729   EXPECT_EQ(param.version, addr.version());
 730   EXPECT_EQ(param.isLinkLocalBroadcast(), addr.isLinkLocalBroadcast());
 731 }
 732
 733 TEST(IPAddress, SolicitedNodeAddress) {
 734   // An example from RFC 4291 section 2.7.1
 735   EXPECT_EQ(IPAddressV6("ff02::1:ff0e:8c6c"),
 736             IPAddressV6("4037::01:800:200e:8c6c").getSolicitedNodeAddress());
 737
 738   // An example from wikipedia
 739   // (http://en.wikipedia.org/wiki/Solicited-node_multicast_address)
 740   EXPECT_EQ(IPAddressV6("ff02::1:ff28:9c5a"),
 741             IPAddressV6("fe80::2aa:ff:fe28:9c5a").getSolicitedNodeAddress());
 742 }
 743
 744 TEST_P(IPAddressByteAccessorTest, CheckBytes) {
 745   auto addrData = GetParam();
 746   IPAddress ip(addrData.address);
 747   size_t i = 0;
 748   for (auto byitr = addrData.bytes.begin(); i < ip.byteCount(); ++i, ++byitr) {
 749     EXPECT_EQ(*byitr, ip.getNthMSByte(i));
 750     EXPECT_EQ(*byitr, ip.isV4() ?
 751           ip.asV4().getNthMSByte(i) : ip.asV6().getNthMSByte(i));
 752   }
 753   i = 0;
 754   for (auto byritr = addrData.bytes.rbegin(); i < ip.byteCount(); ++i,
 755       ++byritr) {
 756     EXPECT_EQ(*byritr, ip.getNthLSByte(i));
 757     EXPECT_EQ(*byritr, ip.isV4() ?
 758         ip.asV4().getNthLSByte(i) : ip.asV6().getNthLSByte(i));
 759   }
 760 }
 761
 762 TEST_P(IPAddressBitAccessorTest, CheckBits) {
 763   auto addrData = GetParam();
 764   auto littleEndianAddrData = addrData.bytes;
 765   //IPAddress stores address data in n/w byte order.
 766   reverse(littleEndianAddrData.begin(), littleEndianAddrData.end());
 767   //Bit iterator goes from LSBit to MSBit
 768   //We will traverse the IPAddress bits from 0 to bitCount -1
 769   auto bitr = folly::makeBitIterator(littleEndianAddrData.begin());
 770   IPAddress ip(addrData.address);
 771   for (size_t i = 0; i < ip.bitCount(); ++i) {
 772     auto msbIndex = ip.bitCount() - i - 1;
 773     EXPECT_EQ(*bitr, ip.getNthMSBit(msbIndex));
 774     EXPECT_EQ(*bitr, ip.isV4() ? ip.asV4().getNthMSBit(msbIndex) :
 775           ip.asV6().getNthMSBit(msbIndex));
 776     EXPECT_EQ(*bitr, ip.getNthLSBit(i));
 777     EXPECT_EQ(*bitr, ip.isV4() ? ip.asV4().getNthLSBit(i) :
 778         ip.asV6().getNthLSBit(i));
 779     ++bitr;
 780   }
 781 }
 782
 783 TEST(IPAddress, InvalidByteAccess) {
 784   IPAddress ip4("10.10.10.10");
 785   //MSByte, LSByte accessors are 0 indexed
 786   EXPECT_THROW(ip4.getNthMSByte(ip4.byteCount()), std::invalid_argument);
 787   EXPECT_THROW(ip4.getNthLSByte(ip4.byteCount()), std::invalid_argument);
 788   EXPECT_THROW(ip4.getNthMSByte(-1), std::invalid_argument);
 789   EXPECT_THROW(ip4.getNthLSByte(-1), std::invalid_argument);
 790   auto asV4 = ip4.asV4();
 791   EXPECT_THROW(asV4.getNthMSByte(asV4.byteCount()), std::invalid_argument);
 792   EXPECT_THROW(asV4.getNthLSByte(asV4.byteCount()), std::invalid_argument);
 793   EXPECT_THROW(asV4.getNthMSByte(-1), std::invalid_argument);
 794   EXPECT_THROW(asV4.getNthLSByte(-1), std::invalid_argument);
 795
 796   IPAddress ip6("2620:0:1cfe:face:b00c::3");
 797   EXPECT_THROW(ip6.getNthMSByte(ip6.byteCount()), std::invalid_argument);
 798   EXPECT_THROW(ip6.getNthLSByte(ip6.byteCount()), std::invalid_argument);
 799   EXPECT_THROW(ip6.getNthMSByte(-1), std::invalid_argument);
 800   EXPECT_THROW(ip6.getNthLSByte(-1), std::invalid_argument);
 801   auto asV6 = ip6.asV6();
 802   EXPECT_THROW(asV6.getNthMSByte(asV6.byteCount()), std::invalid_argument);
 803   EXPECT_THROW(asV6.getNthLSByte(asV6.byteCount()), std::invalid_argument);
 804   EXPECT_THROW(asV6.getNthMSByte(-1), std::invalid_argument);
 805   EXPECT_THROW(asV6.getNthLSByte(-1), std::invalid_argument);
 806
 807 }
 808
 809 TEST(IPAddress, InvalidBBitAccess) {
 810   IPAddress ip4("10.10.10.10");
 811   //MSByte, LSByte accessors are 0 indexed
 812   EXPECT_THROW(ip4.getNthMSBit(ip4.bitCount()), std::invalid_argument);
 813   EXPECT_THROW(ip4.getNthLSBit(ip4.bitCount()), std::invalid_argument);
 814   EXPECT_THROW(ip4.getNthMSBit(-1), std::invalid_argument);
 815   EXPECT_THROW(ip4.getNthLSBit(-1), std::invalid_argument);
 816   auto asV4 = ip4.asV4();
 817   EXPECT_THROW(asV4.getNthMSBit(asV4.bitCount()), std::invalid_argument);
 818   EXPECT_THROW(asV4.getNthLSBit(asV4.bitCount()), std::invalid_argument);
 819   EXPECT_THROW(asV4.getNthMSBit(-1), std::invalid_argument);
 820   EXPECT_THROW(asV4.getNthLSBit(-1), std::invalid_argument);
 821
 822   IPAddress ip6("2620:0:1cfe:face:b00c::3");
 823   EXPECT_THROW(ip6.getNthMSBit(ip6.bitCount()), std::invalid_argument);
 824   EXPECT_THROW(ip6.getNthLSBit(ip6.bitCount()), std::invalid_argument);
 825   EXPECT_THROW(ip6.getNthMSBit(-1), std::invalid_argument);
 826   EXPECT_THROW(ip6.getNthLSBit(-1), std::invalid_argument);
 827   auto asV6 = ip6.asV6();
 828   EXPECT_THROW(asV6.getNthMSBit(asV6.bitCount()), std::invalid_argument);
 829   EXPECT_THROW(asV6.getNthLSBit(asV6.bitCount()), std::invalid_argument);
 830   EXPECT_THROW(asV6.getNthMSBit(-1), std::invalid_argument);
 831   EXPECT_THROW(asV6.getNthLSBit(-1), std::invalid_argument);
 832 }
 833
 834 TEST(IPAddress, StringFormat) {
 835   in6_addr a6;
 836   for (int i = 0; i < 8; ++i) {
 837     a6.s6_addr16[i] = htons(0x0123 + ((i%4) * 0x4444));
 838   }
 839   EXPECT_EQ("0123:4567:89ab:cdef:0123:4567:89ab:cdef",
 840             detail::fastIpv6ToString(a6));
 841
 842   in_addr a4;
 843   a4.s_addr = htonl(0x01020304);
 844   EXPECT_EQ("1.2.3.4", detail::fastIpv4ToString(a4));
 845 }
 846
 847 TEST(IPAddress, LongestCommonPrefix) {
 848   IPAddress ip10("10.0.0.0");
 849   IPAddress ip11("11.0.0.0");
 850   IPAddress ip12("12.0.0.0");
 851   IPAddress ip128("128.0.0.0");
 852   IPAddress ip10dot10("10.10.0.0");
 853   auto prefix = IPAddress::longestCommonPrefix({ip10, 8}, {ip128, 8});
 854   auto prefix4 = IPAddressV4::longestCommonPrefix({ip10.asV4(), 8},
 855                                                   {ip128.asV4(), 8});
 856   // No bits match b/w 128/8 and 10/8
 857   EXPECT_EQ(IPAddress("0.0.0.0"), prefix.first);
 858   EXPECT_EQ(0, prefix.second);
 859   EXPECT_EQ(IPAddressV4("0.0.0.0"), prefix4.first);
 860   EXPECT_EQ(0, prefix4.second);
 861
 862   prefix = IPAddress::longestCommonPrefix({ip10, 8}, {ip10dot10, 16});
 863   prefix4 = IPAddressV4::longestCommonPrefix({ip10.asV4(), 8},
 864                                              {ip10dot10.asV4(), 16});
 865   // Between 10/8 and 10.10/16, 10/8 is the longest common match
 866   EXPECT_EQ(ip10, prefix.first);
 867   EXPECT_EQ(8, prefix.second);
 868   EXPECT_EQ(ip10.asV4(), prefix4.first);
 869   EXPECT_EQ(8, prefix4.second);
 870
 871   prefix = IPAddress::longestCommonPrefix({ip11, 8}, {ip12, 8});
 872   prefix4 = IPAddressV4::longestCommonPrefix({ip11.asV4(), 8},
 873                                              {ip12.asV4(), 8});
 874   // 12 = 1100, 11 = 1011, longest match - 1000 = 8
 875   EXPECT_EQ(IPAddress("8.0.0.0"), prefix.first);
 876   EXPECT_EQ(5, prefix.second);
 877   EXPECT_EQ(IPAddressV4("8.0.0.0"), prefix4.first);
 878   EXPECT_EQ(5, prefix4.second);
 879
 880   // Between 128/1 and 128/2, longest match 128/1
 881   prefix = IPAddress::longestCommonPrefix({ip128, 1}, {ip128, 2});
 882   prefix4 = IPAddressV4::longestCommonPrefix({ip128.asV4(), 1},
 883                                              {ip128.asV4(), 2});
 884   EXPECT_EQ(ip128, prefix.first);
 885   EXPECT_EQ(1, prefix.second);
 886   EXPECT_EQ(ip128.asV4(), prefix4.first);
 887   EXPECT_EQ(1, prefix4.second);
 888
 889   IPAddress ip6("2620:0:1cfe:face:b00c::3");
 890   prefix = IPAddress::longestCommonPrefix({ip6, ip6.bitCount()},
 891                                           {ip6, ip6.bitCount()});
 892   auto prefix6 = IPAddressV6::longestCommonPrefix(
 893     {ip6.asV6(), IPAddressV6::bitCount()},
 894     {ip6.asV6(), IPAddressV6::bitCount()});
 895   // Longest common b/w me and myself is myself
 896   EXPECT_EQ(ip6, prefix.first);
 897   EXPECT_EQ(ip6.bitCount(), prefix.second);
 898   EXPECT_EQ(ip6.asV6(), prefix6.first);
 899   EXPECT_EQ(ip6.asV6().bitCount(), prefix6.second);
 900
 901   IPAddress ip6Zero("::");
 902   prefix = IPAddress::longestCommonPrefix({ip6, ip6.bitCount()}, {ip6Zero, 0});
 903   prefix6 = IPAddressV6::longestCommonPrefix(
 904     {ip6.asV6(), IPAddressV6::bitCount()},
 905     {ip6Zero.asV6(), 0});
 906   // Longest common b/w :: (ipv6 equivalent of 0/0) is ::
 907   EXPECT_EQ(ip6Zero, prefix.first);
 908   EXPECT_EQ(0, prefix.second);
 909
 910   // Exceptional cases
 911   EXPECT_THROW(IPAddress::longestCommonPrefix({ip10, 8}, {ip6, 128}),
 912                std::invalid_argument);
 913   EXPECT_THROW(IPAddress::longestCommonPrefix({ip10, ip10.bitCount() + 1},
 914                                               {ip10, 8}),
 915                std::invalid_argument);
 916   EXPECT_THROW(IPAddressV4::longestCommonPrefix(
 917                  {ip10.asV4(), IPAddressV4::bitCount() + 1},
 918                  {ip10.asV4(), 8}),
 919                std::invalid_argument);
 920   EXPECT_THROW(IPAddress::longestCommonPrefix({ip6, ip6.bitCount() + 1},
 921                                               {ip6, ip6.bitCount()}),
 922                std::invalid_argument);
 923   EXPECT_THROW(IPAddressV6::longestCommonPrefix(
 924                  {ip6.asV6(), IPAddressV6::bitCount() + 1},
 925                  {ip6.asV6(), IPAddressV6::bitCount()}),
 926                std::invalid_argument);
 927
 928 }
 929
 930 static const vector<AddressData> validAddressProvider = {
 931   AddressData("127.0.0.1", {127,0,0,1}, 4),
 932   AddressData("69.63.189.16", {69,63,189,16}, 4),
 933   AddressData("0.0.0.0", {0,0,0,0}, 4),
 934   AddressData("::1",
 935               {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 6),
 936   AddressData("2620:0:1cfe:face:b00c::3",
 937               {38,32,0,0,28,254,250,206,176,12,0,0,0,0,0,3}, 6),
 938 };
 939
 940 static const vector<string> invalidAddressProvider = {
 941   "",
 942   "foo",
 943   "1.1.1.256",
 944   "1",
 945   ":1",
 946   "127.0.0.1,127.0.0.1",
 947   "[1234]",
 948 };
 949
 950 static const vector<ByteVector> invalidBinaryProvider = {
 951   {0x31, 0x32, 0x37, 0x2e, 0x30, 0x30, 0x2e, 0x30, 0x2e, 0x31},
 952   // foo
 953   {0x66, 0x6f, 0x6f},
 954   {0x00},
 955   {0x00, 0x00},
 956   {0x00, 0x00, 0x00},
 957   {0x00, 0x00, 0x00, 0x00, 0x00},
 958   {0xff},
 959 };
 960
 961 static const uint8_t IS_LOCAL = AddressFlags::IS_LOCAL;
 962 static const uint8_t IS_NONROUTABLE = AddressFlags::IS_NONROUTABLE;
 963 static const uint8_t IS_PRIVATE = AddressFlags::IS_PRIVATE;
 964 static const uint8_t IS_ZERO = AddressFlags::IS_ZERO;
 965 static const uint8_t IS_LINK_LOCAL =
 966   AddressFlags::IS_LINK_LOCAL | IS_NONROUTABLE;
 967 static const uint8_t IS_PVT_NONROUTE = IS_NONROUTABLE | IS_PRIVATE;
 968 static const uint8_t IS_MULTICAST = AddressFlags::IS_MULTICAST;
 969 static const uint8_t IS_LINK_LOCAL_BROADCAST =
 970 AddressFlags::IS_LINK_LOCAL_BROADCAST;
 971
 972 static vector<AddressFlags> flagProvider = {
 973   // public v4
 974   AddressFlags("69.63.176.1", 4, 0),
 975   AddressFlags("128.12.65.3", 4, 0),
 976   AddressFlags("192.0.1.0", 4, 0),
 977   AddressFlags("198.51.101.0", 4, 0),
 978   AddressFlags("203.0.114.0", 4, 0),
 979   AddressFlags("128.12.64.115", 4, 0),
 980
 981   // public v6
 982   AddressFlags("2620:0:1cfe:face:b00c::3", 6, 0),
 983
 984   // localhost
 985   AddressFlags("127.0.0.1", 4, IS_LOCAL | IS_PVT_NONROUTE),
 986   AddressFlags("::1", 6, IS_LOCAL | IS_PVT_NONROUTE),
 987
 988   // link-local v4
 989   AddressFlags("169.254.0.1", 4, IS_LINK_LOCAL | IS_PVT_NONROUTE),
 990
 991   // private v4
 992   AddressFlags("10.0.0.0", 4, IS_PVT_NONROUTE),
 993   AddressFlags("10.11.12.13", 4, IS_PVT_NONROUTE),
 994   AddressFlags("10.255.255.255", 4, IS_PVT_NONROUTE),
 995   AddressFlags("127.128.129.200", 4, IS_LOCAL | IS_PVT_NONROUTE),
 996   AddressFlags("127.255.255.255", 4, IS_LOCAL | IS_PVT_NONROUTE),
 997   AddressFlags("169.254.0.0", 4, IS_LINK_LOCAL | IS_PVT_NONROUTE),
 998   AddressFlags("192.168.0.0", 4, IS_PVT_NONROUTE),
 999   AddressFlags("192.168.200.255", 4, IS_PVT_NONROUTE),
1000   AddressFlags("192.168.255.255", 4, IS_PVT_NONROUTE),
1001
1002   // private v6
1003   AddressFlags("fd01:1637:1c56:66af::", 6, IS_PVT_NONROUTE),
1004
1005   // non routable v4
1006   AddressFlags("0.0.0.0", 4, IS_NONROUTABLE | IS_ZERO),
1007   AddressFlags("0.255.255.255", 4, IS_NONROUTABLE),
1008   AddressFlags("192.0.0.0", 4, IS_NONROUTABLE),
1009   AddressFlags("192.0.2.0", 4, IS_NONROUTABLE),
1010   AddressFlags("198.18.0.0", 4, IS_NONROUTABLE),
1011   AddressFlags("198.19.255.255", 4, IS_NONROUTABLE),
1012   AddressFlags("198.51.100.0", 4, IS_NONROUTABLE),
1013   AddressFlags("198.51.100.255", 4, IS_NONROUTABLE),
1014   AddressFlags("203.0.113.0", 4, IS_NONROUTABLE),
1015   AddressFlags("203.0.113.255", 4, IS_NONROUTABLE),
1016   AddressFlags("224.0.0.0", 4, IS_NONROUTABLE | IS_MULTICAST),
1017   AddressFlags("240.0.0.0", 4, IS_NONROUTABLE),
1018   AddressFlags("224.0.0.0", 4, IS_NONROUTABLE),
1019   // v4 link local broadcast
1020   AddressFlags("255.255.255.255", 4, IS_NONROUTABLE | IS_LINK_LOCAL_BROADCAST),
1021
1022   // non routable v6
1023   AddressFlags("1999::1", 6, IS_NONROUTABLE),
1024   AddressFlags("0::0", 6, IS_NONROUTABLE | IS_ZERO),
1025   AddressFlags("0::0:0", 6, IS_NONROUTABLE | IS_ZERO),
1026   AddressFlags("0:0:0::0", 6, IS_NONROUTABLE | IS_ZERO),
1027
1028   // link-local v6
1029   AddressFlags("fe80::0205:73ff:fef9:46fc", 6, IS_LINK_LOCAL),
1030   AddressFlags("fe80::0012:34ff:fe56:7890", 6, IS_LINK_LOCAL),
1031
1032   // multicast v4
1033   AddressFlags("224.0.0.1", 4, IS_MULTICAST | IS_NONROUTABLE) ,
1034   AddressFlags("224.0.0.251", 4, IS_MULTICAST | IS_NONROUTABLE),
1035   AddressFlags("239.12.34.56", 4, IS_MULTICAST | IS_NONROUTABLE),
1036
1037   // multicast v6
1038   AddressFlags("ff00::", 6, IS_MULTICAST | IS_NONROUTABLE),
1039   AddressFlags("ff02:ffff::1", 6, IS_MULTICAST | IS_NONROUTABLE),
1040   AddressFlags("ff02::101", 6, IS_MULTICAST | IS_NONROUTABLE),
1041   AddressFlags("ff0e::101", 6, IS_MULTICAST),
1042   // v6 link local broadcast
1043   AddressFlags("ff02::1", 6, IS_NONROUTABLE | IS_LINK_LOCAL_BROADCAST),
1044 };
1045
1046 static const vector<pair<string, string> > mapProvider = {
1047   {"::ffff:192.0.2.128", "192.0.2.128"},
1048   {"192.0.2.128", "::ffff:192.0.2.128"},
1049   {"::FFFF:129.144.52.38", "129.144.52.38"},
1050   {"129.144.52.38", "::FFFF:129.144.52.38"},
1051   {"0:0:0:0:0:FFFF:222.1.41.90", "222.1.41.90"},
1052   {"::FFFF:222.1.41.90", "222.1.41.90"},
1053 };
1054
1055 static const vector<MaskData> masksProvider = {
1056   MaskData("255.255.255.255", 1, "128.0.0.0"),
1057   MaskData("255.255.255.255", 2, "192.0.0.0"),
1058   MaskData("192.0.2.42", 16, "192.0.0.0"),
1059   MaskData("255.255.255.255", 24, "255.255.255.0"),
1060   MaskData("255.255.255.255", 32, "255.255.255.255"),
1061   MaskData("10.10.10.10", 0, "0.0.0.0"),
1062   MaskData("::1", 64, "::"),
1063   MaskData("2620:0:1cfe:face:b00c::3", 1, "::"),
1064   MaskData("2620:0:1cfe:face:b00c::3", 3, "2000::"),
1065   MaskData("2620:0:1cfe:face:b00c::3", 6, "2400::"),
1066   MaskData("2620:0:1cfe:face:b00c::3", 7, "2600::"),
1067   MaskData("2620:0:1cfe:face:b00c::3", 11, "2620::"),
1068   MaskData("2620:0:1cfe:face:b00c::3", 36, "2620:0:1000::"),
1069   MaskData("2620:0:1cfe:face:b00c::3", 37, "2620:0:1800::"),
1070   MaskData("2620:0:1cfe:face:b00c::3", 38, "2620:0:1c00::"),
1071   MaskData("2620:0:1cfe:face:b00c::3", 41, "2620:0:1c80::"),
1072   MaskData("2620:0:1cfe:face:b00c::3", 42, "2620:0:1cc0::"),
1073   MaskData("2620:0:1cfe:face:b00c::3", 43, "2620:0:1ce0::"),
1074   MaskData("2620:0:1cfe:face:b00c::3", 44, "2620:0:1cf0::"),
1075   MaskData("2620:0:1cfe:face:b00c::3", 45, "2620:0:1cf8::"),
1076   MaskData("2620:0:1cfe:face:b00c::3", 46, "2620:0:1cfc::"),
1077   MaskData("2620:0:1cfe:face:b00c::3", 47, "2620:0:1cfe::"),
1078   MaskData("2620:0:1cfe:face:b00c::3", 49, "2620:0:1cfe:8000::"),
1079   MaskData("2620:0:1cfe:face:b00c::3", 50, "2620:0:1cfe:c000::"),
1080   MaskData("2620:0:1cfe:face:b00c::3", 51, "2620:0:1cfe:e000::"),
1081   MaskData("2620:0:1cfe:face:b00c::3", 52, "2620:0:1cfe:f000::"),
1082   MaskData("2620:0:1cfe:face:b00c::3", 53, "2620:0:1cfe:f800::"),
1083   MaskData("2620:0:1cfe:face:b00c::3", 55, "2620:0:1cfe:fa00::"),
1084   MaskData("2620:0:1cfe:face:b00c::3", 57, "2620:0:1cfe:fa80::"),
1085   MaskData("2620:0:1cfe:face:b00c::3", 58, "2620:0:1cfe:fac0::"),
1086   MaskData("2620:0:1cfe:face:b00c::3", 61, "2620:0:1cfe:fac8::"),
1087   MaskData("2620:0:1cfe:face:b00c::3", 62, "2620:0:1cfe:facc::"),
1088   MaskData("2620:0:1cfe:face:b00c::3", 63, "2620:0:1cfe:face::"),
1089   MaskData("2620:0:1cfe:face:b00c::3", 65, "2620:0:1cfe:face:8000::"),
1090   MaskData("2620:0:1cfe:face:b00c::3", 67, "2620:0:1cfe:face:a000::"),
1091   MaskData("2620:0:1cfe:face:b00c::3", 68, "2620:0:1cfe:face:b000::"),
1092   MaskData("2620:0:1cfe:face:b00c::3", 77, "2620:0:1cfe:face:b008::"),
1093   MaskData("2620:0:1cfe:face:b00c::3", 78, "2620:0:1cfe:face:b00c::"),
1094   MaskData("2620:0:1cfe:face:b00c::3", 127, "2620:0:1cfe:face:b00c::2"),
1095   MaskData("2620:0:1cfe:face:b00c::3", 128, "2620:0:1cfe:face:b00c::3"),
1096   MaskData("2620:0:1cfe:face:b00c::3", 0, "::")
1097 };
1098
1099 static const vector<MaskBoundaryData> maskBoundaryProvider = {
1100   MaskBoundaryData("10.1.1.1", 24, "10.1.1.1", true),
1101   MaskBoundaryData("10.1.1.1", 8, "10.1.2.3", true),
1102   MaskBoundaryData("2620:0:1cfe:face:b00c::1", 48, "2620:0:1cfe::", true),
1103   // addresses that are NOT in the same subnet once mask is applied
1104   MaskBoundaryData("10.1.1.1", 24, "10.1.2.1", false),
1105   MaskBoundaryData("10.1.1.1", 16, "10.2.3.4", false),
1106   MaskBoundaryData("2620:0:1cfe:face:b00c::1", 48, "2620:0:1cfc::", false),
1107 };
1108
1109 INSTANTIATE_TEST_CASE_P(IPAddress,
1110                         IPAddressTest,
1111                         ::testing::ValuesIn(validAddressProvider));
1112 INSTANTIATE_TEST_CASE_P(IPAddress,
1113                         IPAddressFlagTest,
1114                         ::testing::ValuesIn(flagProvider));
1115 INSTANTIATE_TEST_CASE_P(IPAddress,
1116                         IPAddressMappedTest,
1117                         ::testing::ValuesIn(mapProvider));
1118 INSTANTIATE_TEST_CASE_P(IPAddress,
1119                         IPAddressCtorTest,
1120                         ::testing::ValuesIn(invalidAddressProvider));
1121 INSTANTIATE_TEST_CASE_P(IPAddress,
1122                         IPAddressCtorBinaryTest,
1123                         ::testing::ValuesIn(invalidBinaryProvider));
1124 INSTANTIATE_TEST_CASE_P(IPAddress,
1125                         IPAddressMaskTest,
1126                         ::testing::ValuesIn(masksProvider));
1127 INSTANTIATE_TEST_CASE_P(IPAddress,
1128                         IPAddressMaskBoundaryTest,
1129                         ::testing::ValuesIn(maskBoundaryProvider));
1130 INSTANTIATE_TEST_CASE_P(IPAddress,
1131                         IPAddressByteAccessorTest,
1132                         ::testing::ValuesIn(validAddressProvider));
1133 INSTANTIATE_TEST_CASE_P(IPAddress,
1134                         IPAddressBitAccessorTest,
1135                         ::testing::ValuesIn(validAddressProvider));